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Nederlands ES-A234 Built-in memory, real-time recording of temperature and humidity data, up to 65,535 groups can be recorded; It has 2 channels of switch signal output, which can be associated with alarm events. Set various alarm parameters, communication parameters, time and date, etc. through the LCD button;
SEM234 Large LCD 485 temperature and humidity recorder Built-in temperature and humidity alarm function, which can set the upper and lower limits of the temperature and humidity alarm and the hysteresis setting;10~30V wide power supply voltage input, RS485 signal output, multiple recording modes, the longest communication distance can reach 2000 meters.
ES-A234 Large LCD 485 temperature and humidity recorder
ES-A234 Built-in memory, real-time recording of temperature and humidity data, up to 65,535 groups can be recorded; It has 2 channels of switch signal output, which can be associated with alarm events. Set various alarm parameters, communication parameters, time and date, etc. through the LCD button;
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Items |
Parameter |
|
|
DC power supply (default) |
10~30V DC |
|
|
Maximum power consumption |
0.4W |
|
|
Precision A |
humidity |
±2% RH (5% RH~95% RH, 25°C) |
|
temperature |
±0.4°C (25°C) |
|
|
Precision B (default) |
humidity |
±3% RH (5% RH~95% RH, 25°C) |
|
temperature |
±0.5°C (25°C) |
|
|
Long-term stability |
humidity |
≤1%RH/y |
|
temperature |
≤0.1°C/y |
|
|
Response time |
humidity |
≤4s (1m/s wind speed) |
|
temperature |
≤15s (1m/s wind speed) |
|
|
Probe operating temperature |
-40°C~+120°C, default -40°C~+80°C |
|
|
Probe working humidity |
0%RH-100%RH |
|
|
Temperature display resolution |
0.1 ° C |
|
|
Humidity display resolution |
0.1% RH |
|
|
Temperature and humidity refresh time |
1S |
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Transmitter circuit operating temperature and humidity |
-20°C~+60°C, 0%RH~80%RH |
|
|
Signal output |
RS485 (Modbus-RTU protocol, default address code 1, baud rate 4800, N, 8, 1) |
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Time and date |
Built-in clock, real-time display |
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Alarm function |
Built-in buzzer, external sound and light alarm, relay optional |
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|
Recording interval (minutes) |
Adjustable interval, default 30 minutes |
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|
Record points |
65535, if recorded by default 30 minutes, can be stored for 4 years |
|
|
Record mode |
Off / on / automatic |
|
|
Storage mode |
Automatic loop storage |
|
|
Installation method |
Wall-mounted |
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