Time 1090 Portable Process Calibrator

Includes: Time 1090, carry case, rechargeable battery pack (installed) with mains charger, and user manual.

Reference 1090

Brand Time Electronics

The Time 1090 is a high performance instrument designed for use in both the lab and field applications. It simulates and can measure from the most commonly used temperature sensors - thermocouples (8 types) and PT100. In addition it can generate and measure mV and mA.

Thermocouple Measurement and Simulation

Measure and simulate the temperature and mV characteristics of J, K, T, R, S, B, N and E thermocouples.

Cold Junction Compensation

The unit 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 +/-30mV and 0 to +/-60mA. Source ranges are 0 to +/-80mV and 0 to +80mA.

Temperature Units Selection

The display can be easily changed from °C to °F. The equivalent uV (thermocouples) and ohms (PT100) can also be shown.

24V Process Loop Drive Mode

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

Inching (Incrementing/Decrementing)

The unit has a general-purpose inching function. This adjusts the output in fixed increments of temperature (thermocouples only) or voltage or current. The set-up menu gives a the user a choice of three levels of increment i.e. 0.1, 1 or 10 for °C/°F, or 1, 10, or 100 uV/uA for voltage/current. The lowest of these represents the highest setting resolution and provides the most precise control of the output. This is especially useful for calibrating thermostat controllers that have tight specification on hysteresis.

Memory Recall and Step/Auto-Step Functions

Up to 10 values can be stored in the unit’s non-volatile memory and they can be recalled at any time. The user can also manually step through them in sequence using the step key. Continuous stepping (auto-step) is also available at any user selectable rate between 1 & 10 seconds/step.

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. This feature can be disabled if not required.

FEATURES

Measure/simulate thermocouples.
Measure/simulate PT100.
Measure/source (µV/mV/mA).
Display in °C and °F.
Automatic CJC - selectable.
10 point memory recall.
Process loops 4-20mA/0-50mA.

Time 1090 Specifications

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
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
Note: An additional correction representing the equivalent 1μV should be allowed for stray thermal emf effects (Temperature measure & simulation).
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 24V 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: 300Ω/80mA, 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
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	H235 x W150 x D75mm.
Weight	1.2 kg.
Optional Extras	Calibration certificates traceable NPL and UKAS.
Country of Origin	UK.
Time 1090 warranty	One-year.