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1090 Portable Process Calibrator

Overview
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The 1090 is a precision portable process calibrator that combines source and measurement functions for thermocouples, Pt100s, µV, mV & mA. It is a multifunction instrument that combines accuracy and durability with simple operation, making it ideal for process plant applications and field testing work.

Thermocouple Measurement and Simulation: Measure and simulate the temperature and mV characteristics of J, K, T, R, S, B, N and E thermocouples. The 1090 can be operated with or without internal cold junction compensation.

Pt100 Measurement and Simulation: Based on 0.3850 alpha probe standard. Range is -200 °C to 700 °C.

Measurement and Source (µV, mV, and mA): Measurement ranges are 0 to ± 30 mV and 0 to ± 60 mA. Source ranges are 0 to ± 80 mV and 0 to 80 mA.

Temperature Units Selection: The display can be easily changed from °C to °F. The equivalent µV (thermocouples) and ohms (Pt100) can also be shown.

24 V Process Loop Drive Mode: A process loop can be driven at 24 V and up to 60 mA by selecting the ‘Milliamp Source’ mode and setting it at 60 mA (or a lower level if required).

Features

Measure/simulate thermocouples
Measure/simulate Pt100
Measure/source (µV/mV/mA)
24 V loop drive voltage
Process loops 4-20 mA/0-50 mA
Automatic or manual CJC
10 point memory recall
Display in °C and °F
Portable with carry case supplied
Battery powered with 60 hours typical use between charges

Practical user features

Features include an increment/decrement function that adjusts an output in fixed increments of temperature (for thermocouples), voltage or current. Three levels of increment are 0.1/1/10 for °C/°F, or 1/10/100 μV/μA for voltage or current. Lower increments mean higher setting resolution, enabling a more precise control of the output. This is useful when calibrating thermostat controllers that have tight specifications on hysteresis.

Further features are the memory recall and stepping functions. Up to 10 values can be stored and recalled at any time. The user can manually step through them in sequence or use continuous stepping (auto-step) at a selectable rate between 1 & 10 seconds/step.

Built for field calibration work

The 1090 is a robust instrument used for field calibration work. It is supplied with a leather carry case that serves to protect the calibrator and features a folding front cover that enables full usage of the unit when housed.

Power is via an internal high capacity rechargeable metal hydride battery that can be recharged from the supplied external mains charger. An auto power-down feature helps conserve battery life by switching off the instrument if inactive for over 5 minutes.

1090 Applications

The 1090 is a versatile multifunction field calibrator for testing and calibration of industrial process equipment. It can be used to measure a temperature sensor output to verify performance, or simulate sensor outputs at different temperatures to check transmitters and measuring devices.

In addition to thermocouple and RTD transmitter calibration, the 1090 provides a solution for process loop diagnostics, fault finding and maintenance. Troubleshoot 4-20 mA loops with mA measurement of a transmitter output, simulate a transmitter with mA source, and provide 24 V loop power.

Specifications

Technical Specification

Temperature Measure
Thermocouple Type	Temperature Range (°C)	Accuracy (°C)
J	-200 to 580	0.7
K	-200 to -150 -150 to 750	2.5 0.5
T	-200 to 0 0 to 400	1.5 0.4
R	50 to 400 400 to 1750	3.0 1.5
S	-50 to 100 100 to 1750	3.0 1.5
B	110 to 1000 1000 to 1800	3.5 1.5
N	-100 to 890	0.6
E	-50 to 400	0.4
Resolution	0.1 °C or 0.1 °F
An additional correction representing the equivalent 1 μV should be allowed for stray thermal emf effects

Temperature Simulation
Thermocouple Type	Temperature Range (°C)	Accuracy (°C)
J	-210 to 150 150 to 1200	0.15 0.3
K	-270 to 190 190 to 1250	0.5 0.4
T	-200 to 150 150 to 400	0.4 0.5
R	-50 to 800 800 to 1750	0.8 2.0
S	-50 to 850 850 to 1750	0.9 2.0
B	100 to 1200 1200 to 1800	2.0 3.0
N	-270 to 260 260 to 1300	0.5 1.0
E	-50 to 1000	0.3
Resolution	0.1 °C or 0.1 °F
An additional correction representing the equivalent 1 μV should be allowed for stray thermal emf effects

Pt100 Simulation
14 set temperature points (°C)	Accuracy
-100, -50, -20, 0, 20, 50, 100, 200, 300, 400, 500, 600, 700, 800	0.1 % of resistance value (typically 0.5 °C)

Pt100 Measure
Range	Accuracy	Resolution
200 to 700 °C, 2 wire	0.2 % of resistance value (typically 0.7 °C)	0.2 °C (or 0.2 °F)

Millivolt Measure
Range	Resolution	Accuracy	Input Resistance
0 to +/- 30 mV	10 μV	0.05 % of full scale ±1 digit	100 kΩ

Millivolt Source
Range	Resolution	Accuracy	Output Resistance
0 to 8 mV	0.5 μV	+/- 4 μV	10 Ω
8 to 80 mV	5 μV	0.02 % of full scale	10 Ω

Milliamp Measure
Range	Resolution	Accuracy	Input Resistance
0 to 60 mA	20 μA	0.05 % of full scale ±1 digit	0.5 Ω

Milliamp Source
Range	Resolution	Accuracy
0 to 8 mA	0.5 μA	+/-10 μA
8 to 80 mA	5 μA	0.02 % of full scale

Further Features and Functions
Inching	Three levels of increment, 0.1, 1 or 10 for °C/°F, and 1, 10, or 100 μV/ μA for voltage/current. The lowest of these represents the highest setting resolution and provides the most precise control of the output
24 V Process Loop Drive	A process loop can be driven at 24 V and up to 60 mA by selecting the ‘Milliamp Source’ mode and setting it at 60 mA (or a lower level if required). Max Load Specifications: 300 Ω/80 mA, 480 Ω/50 mA, 1.2 kΩ/20 mA
Memory recall & step	10 memory locations for non-volatile storage of values. Manual & AutoStep, rate adjustable from 1 to 10 sec/step

General Specification

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Downloads

File Name	File Size	Language	Format
1090 Portable Process Calibrator Data Sheet	495 kB	ENES FR IT	PDF
1090 Portable Process Calibrator User Manual	1.55 MB	EN	PDF

Cold Junction Compensation	Accuracy 0.2 °C. Resolution 0.1 °C.
Operating Temperature	-10 to 40 °C (15 to 105 °F)
Connections	Industry standard 4 mm screw terminals
Power	A Ni-MH rechargeable battery pack gives approx. 60 hours continuous use. The mains recharger supplied gives full recharge in 11 hours. To conserve battery life a user inactivity power-down feature is included.
Dimensions	H 235 x W 150 x D 75 mm
Weight	1.2 kg
Supplied With	Carry case, rechargeable battery pack (installed) with mains charger, and user manual
Optional Extras	Calibration certificates: Traceable (Factory) and accredited (ISO 17025)
Country of Origin	UK
Shipping Details	Packed Dimensions: L 42 x W 42 x H 42 cm / Packed Weight: 4 kg
HS Code	9030 3900

C177	Traceable calibration certificate (Factory)
C139	Accredited calibration certificate (ISO 17025)

1090 Portable Process Calibrator

Features

Practical user features

Built for field calibration work

1090 Applications

Specifications

Downloads

Request a price quote

1090 Portable Process Calibrator

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