TEMPERATURE |
Indicators
Single Display
ON-OFF / Prop ContSingle Display
Dual Display
PID ControllersSingle Display
Dual Display
Accurate |
Software linearized using multiple NIST inverse polynomials and Steinhart & Hart equation involving floating point arithmetic ensures a very high accuracy.
Field configuration |
Completely Field selectable. Important parameters like sensor selection, Heat/Cool mode, Hyssteresis etc., can be selected in the field. There are no jumpers or presets.
Die hard |
Rugged linear power supply to handle the worst power condictions.
State of the art |
Advance single chip design.
Reliable |
No presets and jumperless design.
Adjustable Persistance time |
To prevent fast state change of the O/P relay, two settings are provided.'ON Persistance Time' and 'OFF Persistance Time'.
Once the controller decides to put the output relay ON then the relay remains ON for at least the time set in the 'ON Persistance time' parameter, regardless of the change in the process temperature.
Similarly the 'OFF Persistance Time' parameter controls the relay OFF time.
This feature is specially useful in applications like compressors and gas fired ovens.
Parametre locking |
Configiration locks to prevent unauthorized tampering.
SPECIFICATIONS | ||||
Model | 7E2x Series | |||
Power Supply | 220 VAC ± 15%. 50 / 60 Hz | |||
Power Consumptiuon | Approx 1.5 VA | |||
Display | Dual 4 Digit Seven Segment LED Display. | |||
Display Size | ||||
7E2x 96 | Main | 0.56" RED | ||
Aux | 0.56" GREEN | |||
7E2x 72 | Main | 0.56" RED | ||
Aux | 0.39" GREEN | |||
7E2x 48 | Main | 0.39" RED | ||
Aux | 0.27" GREEN | |||
Sampling Time | 0.1 Sec | |||
Update rate | 2.5Hz | |||
Input Sensor | Universal Sensor Input | |||
Thermocouple | J, K, E and T | |||
R.T.D | DIN Pt100, JIS Pt100, Nickel-120 | |||
Sensor Adj. | Zero Adjust. | Adj. -19.9 to 99.9°C. | ||
Linearisation | Thermocouple | Multiple Inverse Polynomials NIST | ||
R.T.D | Using Steinhart & Hart Equation. | |||
Setpoint Range | Adj from front keys between HSP and LSP | |||
HSP (High setpoint Clamp) | Adj within Sensor operating range. | |||
LSP (Low setpoint Clamp) | Adj within Sensor operating range. | |||
Setpoint 1 Control | HEAT/ COOL | ON/ OFF Control | ||
Time Proportional Control | ||||
Overshoot Protect. Only for Model: 7E21 |
Settable from 70 - 100% of Setvalue. | |||
Setpoint 2
Only Model: 7E22 & 7E23 |
Can be independently configured as:
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Setpoint 3
Only for Model:7E23 |
Same as "Setpoint 2" | |||
Output | Relay Contact | 250 VAC, 5Amps | ||
SSR Output | 12 VDC ± 3V @ 20mA | |||
Display Accuracy. | ± 0.2% based on F.S or 3°C Max | |||
Resolution | Thermocouple | 1°C. | ||
R.T.D | 0.1°C | |||
Open Sensor Detect. | Displays "OPEN" and output is cut off. | |||
Setting type | Setting by front buttons. No Jumpers. | |||
ON-OFF
Mode |
Hysteresis | Adj. from 0.2 - 99.9°C at ON/ OFF Control | ||
ON Persistence time | Adj. from 1 - 300 Sec | |||
OFF Persistence time | Adj. from 1 - 300 Sec | |||
Time Prop Mode | Band | Adj. from 2.0 - 99.9°C | ||
Cycle Time | Adj. from 2 - 300 Sec | |||
Reset | Adj. -19.9 to 99.9°C. | |||
Min Duty Clamp | Adj. from 5 - 40% of Cycle time. | |||
Max Duty Clamp | Adj. from 60 - 95% of Cycle time. Fixed at 90% in model 7E22 and 7E23. |
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Ambient Temperature | 0°C - 45°C (non- freezing status) | |||
Humidity | 35 - 85% RH. |
Sensor |
3 Display Model |
4 Display Model |
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Min |
Max |
Min |
Max |
|
RTD |
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DIN Pt100 |
-99°C |
660°C |
-160°C / |
660°C / |
JIS Pt100 |
-99°C |
660°C |
-160°C / |
660°C / |
Nickel-120 |
-80°C |
260°C |
-80°C / |
260°C / |
Thermocouple |
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J |
-99°C |
870°C |
-99°C |
870°C |
K |
-99°C |
999°C |
-99°C |
1300°C |
E |
-99°C |
660°C |
-99°C |
660°C |
T |
-99°C |
400°C |
-99°C |
400°C |
Model | No of Outputs | No of Displays | Size |
7E21 96 | 1 | 4+4 | RP-96x96 |
7E22 96 | 2 | ||
7E23 96 | 3 | ||
7E21 72 | 1 | 4+4 | RP-72x72 |
7E22 72 | 2 | ||
7E21 48 | 1 | 4+4 | RP-48x48 |
7E22 48 | 2 |