This analog controller is used for simple applications with on/off or P control, without indication.
Feature
- Build-in Laser Trim ASIC
- Easy to change the range
- ON-OFFor time proportional selectable
- Compact, only 65mm in depth
- A wide selection of control output option
- A wide selection of ranges
- Sensor break protection
- Alarm option (BTC-704, BTC-702 Only)
- Low Cost
- EMC, LVD: CE
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Specification
Input
Thermocouple (T/C) | Type J, K |
RTD | 3-wires PT 100 ohms, DIN or JIS |
Range | See ordering information |
Accuracy | ±2% of span (BTC-803), ±1% of span (BTC-805) |
Cold Junction Compensation | ±0.1°C / 1°C |
Rejection of RTD Lead Resistance | ( 0.1°C - 0.025% of PV reading) / ohm |
Sensor Break Protection | Upscale |
External Resistance | 100 ohms max. |
Normal Mode Rejection | 60 dB |
Common Mode Rejection | 120 dB |
Sample Rate | 3 times / second |
Control
Proportion Band | 2.2% of span |
ON-OFF Hysteresis | 1 % of span |
Cycle Time | 20 seconds for relay output, 1 second for pulsed voltage output, 0.02 second for linear current or voltage output. |
Control Action | Reverse action |
Output
Control | Relay 5A / 240V max. resistive load |
Pulsed Voltage | 20mA / 32VDC max. |
Current | 4-20mA, 0-20mA, max. load 500 ohms |
Voltage | 0- 10V, min. load 500k ohms |
Alarm | Relay output, 2A / 240VAC max. resistive load |
Adjustment
Setpoint | Single turn wire wound potentiometer |
Alarm | Deviation alarm, adjustable ±10% of span |
Manual Reset | Adjustable 2.6% of span (BTC-704, 702 only) |
Resolution of set point | 0.2% of span |
Accuracy of set point | ±2% of span |
Repeatability of set point | ±0.1 % of span |
Indication
Process Indicator | BTC-702: Deviation meter BTC-704: 10mm red 3-1/2 dight LED display |
Status Indicator | ON red LED Lamp |
Alarm Indicator | ON red LED Lamp |
Power
- Rating: 90-240VAC, 50 / 60 Hz
- Consumption: Less than 5VA
Environmental & Physical
Operating Temperature | 0-50°C |
Humidity | 0 to 90% RH (non-condensing) |
Insulation | 20M ohms min. (500VDC) |
Breakdown | AC2000V,50/60Hz,1 minute |
Vibration | 10-55Hz,amplitude 1mm |
Shock | 200 m/s² (20g) |
Weight | BTC-704: 240 grams, BTC-702: 320 grams, BTC-701: 290 grams |
Dimension | 72(W)X72(H)X65mm (depth behind the panel) |
Panel cutout | 68 X 68mm |
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