New Brand MTL2314 THC trip amplifier With Good Price In Stock
The MTL2314 accepts a low-level dc signal from a thermocouple or other emf source in a hazardous area and can be used with earthed or insulated sensors. A safety drive can be set to initiate either a high or low alarm in the event of thermocouple burnout or cable breakage. On-site alarm setting can be carried out without using a thermometer since the built-in cold junction (CJ) compensation circuit is zeroed at 0°C and can be bypassed. All that is needed is a calibrated mV source to inject the emf of the thermocouple at the alarm temperature, for a CJ temperature of 0°C.
SPECIFICATION OF MTL2314
See also ‘Common specification’
Versions available
A: 1-alarm
B: 2-alarm
Signal source (factory-set)
PPR (type R) to BS 4937
CA (type K) to BS 4937
CC (type T) to BS 4937
IC (type J) to BS 4937
Pallaplat THC (terminals 1 & 2)
All units accept emf inputs (terminals 1 and 3)
Location of THC
Zone 0, IIC, T4 hazardous area
Div 1, Group A, hazardous location
CJ compensation
Referenced to 0°C
Input range (0mV=0°C) (factory-set)
–2 to +10mV
–5 to +25mV
–12 to +60mV
Hysteresis: nominally 1% of input range
Input current
<2nA (no safety drive)
<70nA (with safety drive)
Maximum source resistance
1kΩ for specified performance (safety drive off)
Power supply failure protection
Relay(s) de-energised if supply fails
Broken line protection
Upscale or downscale at >0.5mV/s, or off
Calibration accuracy
(CJ set at 20°C) ±1°C
Trip-point adjustment
Within 0.1% of input range over whole range (set by multi-turn
potentiometer accessible through casing)
Supply voltage effect on trip point
<0.1% of input range for supply voltage change within the
specified limits
Temperature effect on trip point (emf input)
Emf input: <0.015% of input range/°C
THC input: emf input ±0.03°C/°C average
Response time
500ms, nominal
Alarm function (selectable by link)
High alarm: relay energised when input signal <trip point
Low alarm: relay energised when input signal >trip point
Alarm relay contacts
1-pole changeover (2-alarm version)
2-pole changeover (1-alarm version)
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Windy Wang
HONGKONG XIEYUAN TECH CO., LIMITED
Add: 7-A16,Caishen Commercial Plaza,Hankou Railway Station,Wuhan,China
Tel: +86-27-8588 3233 | Fax:+86-27-8530 9780 | Mobile/Whatsapp :+86 15972199006 | Skype: windy@hkxytech.com
Mail: windy@hkxytech.com
Website: http://www.hkxytech.com/ | GMT/UTC +8
