Time Electronics 1048 Voltage, Current, Loop Calibrator

£696.00


Range	Resolution	Accuracy	Output Current	Temp Coefficient
0 to 220mV	10μV, 100μV above 0.2V	0.05% of full scale	20mA	± 6ppm/°C
0 to 2.2V	100μV, 1mV above 2V	0.02% of full scale	20mA	± 6ppm/°C
0 to 22V	1mV, 10mV above 20V	0.02% of full scale	20mA	± 6ppm/°C


Range	Resolution	Accuracy	Measure Load	Temp Coefficient
0 to 220mV	10μV, 100μV above 0.2V	0.05% of fs ± 1 digit	1MΩ	± 3ppm/°C
0 to 2.2V	100μV, 1mV above 2V	0.02% of fs ± 1 digit	1MΩ	± 3ppm/°C
0 to 22V	1mV, 10mV above 20V	0.02% of fs ± 1 digit	10MΩ	± 3ppm/°C


Range	Resolution	Accuracy	Output Voltage	Temp Coefficient
0 to 220μA	10nA, 0.1μA above 200mA	0.05% of full scale	24V Max	± 12ppm/°C
0 to 2.2mA	0.1μA, 1μA above 2mA	0.02% of full scale	24V Max	± 12ppm/°C
0 to 22mA	1μA, 10μA above 20mA	0.02% of full scale	24V Max	± 12ppm/°C


Range	Resolution	Accuracy	Input Load	Temp Coefficient
0 to 220μA	10nA, 0.1μA above 200mA	0.05% of fs ± 1 digit	1kΩ	± 8ppm/°C
0 to 2.2mA	0.1μA, 1μA above 2mA	0.02% of fs ± 1 digit	110Ω	± 8ppm/°C
0 to 22mA	1μA, 10μA above 20mA	0.02% of fs ± 1 digit	16Ω	± 8ppm/°C

SINK (TX SIM)	2 wire transmitter simulation: External excitation voltage, 3V min, 50V max. The current sink levels are adjustable, with accuracies as in the 3 source ranges shown above. Note: Accuracies in all measure modes are +/-1 digit.
Output Steps	5 fixed 4mA steps for current output 4, 8, 12, 16 & 20mA 11 fixed 1V steps for voltage output 0,1,2...10V 21 fixed steps 1V/1mA for V & I output 0,1,2...20 Stepping can be done manually or automatically (Autostep). Stepping speed is adjustable (1-9 sec/step). Dwell time (top and bottom) is one step period. In step mode the accuracy is limited to 0.05% of span +/- 1 digit.
Output Ramp	Current Ramp 4 to 20, or 0 to 20 on all ranges. Voltage Ramp 0 to 10, or 0 to 20 on all ranges. Ramp time 7 seconds. Dwell (top/bottom) 5 seconds. Manual restart. Ramp operation is also available in Sink (TX SIM).
Output Adjustment	A ten turn potentiometer for quick setting, with fine adjust using up/down increment buttons.
Connections	Made by 4mm connectors or clamped using the wire compression feature.
Power	PP3 size, 9V battery (supplied). Approximately 20 hours life depending on the current sourced. Alternatively an optional 12V power supply can be plugged into the 2.5mm socket on the top of the unit.
Protection	Can withstand open circuits, short circuits and reverse polarity up to 25V. Additional protection is by an internal fuse.

Dimensions:	H142 x W78 x D50mm
Weight	0.30kg
Operating temperature	-10 to 50°C. Storage temperature -30 to 70°C.
Operating humidity	0 to 90% non-condensing at 25°C
Supplied With	Leatherette carry case, 9V PP3 battery (installed), and user manual.
Optional Extras	230V or 110V Mains Power Supply. Calibration Certificates traceable to NPL and UKAS.
Country of Origin	UK

Description

A portable instrument that operates as a current and voltage source and a multi-purpose loop calibrator. High performance and simple operation make it suitable for R&D, service, process control engineers, and calibration technicians. As a versatile handheld calibrator, the source and measure capabilities with 0.02% accuracy mean the 1048 is a compact solution for most simulation and test applications.

A compact voltage, current, and process loop calibrator for engineering, manufacturing, test, and process control applications. This model combines digital accuracy with simple analogue control and is well suited to plant operations such as powering control loops.

• Source/measure voltage and current
• 3 source ranges: 0 to 22mA and 0 to 22V
• 3 measure ranges: 0 to 70mA and 0 to 50V
• Accuracy 0.02% of range
• Transmitter simulator/sink loop control
• Output steps and ramps
• Fine adjustment (inching)
• Battery powered 9V PP3, 20 hours typical use
• H142 x W78 x D50mm, weight 0.34kg

The 1048 combines the advantages of digital accuracy with analog control. Based on the popular functionality of the 1044 calibrator, the 1048 offers higher voltage and current across the three ranges, and improved accuracy. The additional features of transmitter simulation, sink loop control, output stepping and ramping, and incremental fine adjustment make the instrument ideal for use in the process industry.

The large, easy to read 4.5 digit LCD display shows the actual output, even when the connected load exceeds the specifications. This important feature eliminates the risk of large errors when connecting to unknown loads. The display also indicates if the battery becomes critically low.

In the source mode, voltage up to 22V and current up to 22mA may be generated in three ranges. When in current source mode the 1048 has a high 24V compliance voltage which is ideal for powering process loops.In the measurement mode, the range and function can be easily selected, with the measured input accurately shown on the display.

The step, ramp, and inching functions are simple operation, with no key press menus to learn, just switches and buttons. A multi-turn potentiometer controls the output, with up/down incrementing buttons for fine control. The output can be reversed (+/-) and zeroed at the flick of a switch. The automatic ramp function enables the user to choose either 5, 11, or 21 point calibration. Manual operation can be quickly restored by a single push of a button.

The 1048 is housed in a pocket sized ABS case, with carry case supplied as standard. Connections are by standard 4mm plugs or by simply clamping the wires under the terminals. A single 9V battery powers the unit or an external 12V DC power supply may be used which disconnects the internal battery.

Applications
Common use is to simulate a transducer or measure the current flow in a transducer loop. The 1048 can beused to check a 4 to 20mA system in either source or measure modes of operation, with the 24V compliance voltage powering the loop when current source mode is selected. In the source mode, the 1048 may be used to calibrate meters, thermocouple indicators, data loggers, for signal injection, semiconductor characterisation, or as a backing off source. In the measure mode, the 1048 may be used in the same way as a DMM, checking DC voltages and current over 3 ranges with excellent resolution and accuracy

Features & Specification

More Information

Key Features

0.02% Accuracy, Fine Adjustment, 3 Source Ranges, 3 Measure Ranges, Output Steps & Ramps

Product Stock Status

Next Day Delivery (subject to availability)

Manufacturer

Time Electronics

Short Description


Range	Resolution	Accuracy	Output Current	Temp Coefficient
0 to 220mV	10μV, 100μV above 0.2V	0.05% of full scale	20mA	± 6ppm/°C
0 to 2.2V	100μV, 1mV above 2V	0.02% of full scale	20mA	± 6ppm/°C
0 to 22V	1mV, 10mV above 20V	0.02% of full scale	20mA	± 6ppm/°C


Range	Resolution	Accuracy	Measure Load	Temp Coefficient
0 to 220mV	10μV, 100μV above 0.2V	0.05% of fs ± 1 digit	1MΩ	± 3ppm/°C
0 to 2.2V	100μV, 1mV above 2V	0.02% of fs ± 1 digit	1MΩ	± 3ppm/°C
0 to 22V	1mV, 10mV above 20V	0.02% of fs ± 1 digit	10MΩ	± 3ppm/°C


Range	Resolution	Accuracy	Output Voltage	Temp Coefficient
0 to 220μA	10nA, 0.1μA above 200mA	0.05% of full scale	24V Max	± 12ppm/°C
0 to 2.2mA	0.1μA, 1μA above 2mA	0.02% of full scale	24V Max	± 12ppm/°C
0 to 22mA	1μA, 10μA above 20mA	0.02% of full scale	24V Max	± 12ppm/°C


Range	Resolution	Accuracy	Input Load	Temp Coefficient
0 to 220μA	10nA, 0.1μA above 200mA	0.05% of fs ± 1 digit	1kΩ	± 8ppm/°C
0 to 2.2mA	0.1μA, 1μA above 2mA	0.02% of fs ± 1 digit	110Ω	± 8ppm/°C
0 to 22mA	1μA, 10μA above 20mA	0.02% of fs ± 1 digit	16Ω	± 8ppm/°C

SINK (TX SIM)	2 wire transmitter simulation: External excitation voltage, 3V min, 50V max. The current sink levels are adjustable, with accuracies as in the 3 source ranges shown above. Note: Accuracies in all measure modes are +/-1 digit.
Output Steps	5 fixed 4mA steps for current output 4, 8, 12, 16 & 20mA 11 fixed 1V steps for voltage output 0,1,2...10V 21 fixed steps 1V/1mA for V & I output 0,1,2...20 Stepping can be done manually or automatically (Autostep). Stepping speed is adjustable (1-9 sec/step). Dwell time (top and bottom) is one step period. In step mode the accuracy is limited to 0.05% of span +/- 1 digit.
Output Ramp	Current Ramp 4 to 20, or 0 to 20 on all ranges. Voltage Ramp 0 to 10, or 0 to 20 on all ranges. Ramp time 7 seconds. Dwell (top/bottom) 5 seconds. Manual restart. Ramp operation is also available in Sink (TX SIM).
Output Adjustment	A ten turn potentiometer for quick setting, with fine adjust using up/down increment buttons.
Connections	Made by 4mm connectors or clamped using the wire compression feature.
Power	PP3 size, 9V battery (supplied). Approximately 20 hours life depending on the current sourced. Alternatively an optional 12V power supply can be plugged into the 2.5mm socket on the top of the unit.
Protection	Can withstand open circuits, short circuits and reverse polarity up to 25V. Additional protection is by an internal fuse.

Dimensions:	H142 x W78 x D50mm
Weight	0.30kg
Operating temperature	-10 to 50°C. Storage temperature -30 to 70°C.
Operating humidity	0 to 90% non-condensing at 25°C
Supplied With	Leatherette carry case, 9V PP3 battery (installed), and user manual.
Optional Extras	230V or 110V Mains Power Supply. Calibration Certificates traceable to NPL and UKAS.
Country of Origin	UK

Delivery

Updated January 2024

Please note, our cut-off time is 2:00pm

Orders requiring calibration

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.
Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service	Price
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT	FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT	£4.95
Next WORKING Day (excludes Saturdays, Sundays and public holidays) – UK Mainland only - Zones A & B - ANY order value - Order by 2:00pm	£7.75
Saturday ANYTIME Delivery - Order by 2:00pm	£9.95

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

Zones A & B - Mainland delivery rates apply.
Zone C - Scottish Highlands (Charges are calculated at the checkout).
Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
Zone E - Northern Ireland (Charges are calculated at the checkout).
Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

Export

All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
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