Simex SRT-77, Руководство пользователя

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User manual - METER SRT-77-XA
- Do not use the unit in areas threatened with excessive shocks, vibrations, dust,
humidity, corrosive gasses and oils.
- Do not use the unit in areas where there is risk of explosions.
- Do not use the unit in areas with significant temperature variations, exposure to
condensation or ice.
- Do not use the unit in areas exposed to direct sunlight.
- Make sure that the ambient temperature (e.g. inside the control box) does not
exceed the recommended values. In such cases forced cooling of the unit must
be considered (e.g. by using a ventilator).
The unit is designed for operation in an industrial environment and must
not be used in a household environment or similar.
2. GENERAL CHARACTERISTICS
The
SRT-77-XA
meter is equipped with thermocouple input (K, S, J, T, N, R, B, E). The
measurement range depends on connected thermocouple type. Measurement is linearised by
the polynomial characteristics referred to particular thermocouples and temperature of cold
ends is compenssated automatically. The device has additional measurement range (-
10 ÷ 90mV) mainly for diagnostics of measurement circuits. Being in this range, unit displays
direct voltage connected to its input (without compensation of cold ends). The result is
presented on 4-digit LED display. For every thermocouples result is displayed as integer (no
decimal point, e. g 1460) and for mV range with 2 digits after decimal points (with resolution
0.01mV e. g. -1.23 ).
The device can be equipped with one or two relay (or OC type) outputs. Device SRT-77-
XA is equipped with RS-485 / Modbus RTU communication interface and 24V/100mA supply
output for free use. The meter can be ordered in two power supply versions.
3. TECHNICAL DATA
Power supply voltage
(depending on version)
External fuse (required)
Power consumption
85... 230 ...260V AC/DC; 50 ÷ 60 Hz (separated)
or 19... 24 ...50V DC and 16... 24 ...35V AC (separated)
T - type, max. 2 A
max. 4.5 VA @ 85 ÷ 260V AC/DC
max. 4.5 VA @ 16V ÷ 35V AC
max. 4.5 W @ 19V ÷ 50V DC
Measurement input thermocouple type : K, S, J, T, N, R, B, E
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