HPT-F
Multichannel Process Indicator
HPT-F panel-mounted multichannel inspection instrument for level, pressure, temperature and humidity signal acquisition, with LED indication and alarm, communication and printing configurations.
- Accuracy
- ±0.2% FS
- Communication configurations
- RS-485 two-wire / RS-232
- Communication protocol
- Modbus RTU
Supplied by WKSENSOR. Ask us about pricing, availability and delivery.
Product overview
Panel inspection instrument
Front indication window with two rows of status points and lower control buttons.
Multichannel acquisition covers level, pressure, temperature and humidity signals. Over-range values trigger flashing indication; upper/lower-limit contact alarms include deadband settings.
| Interface | Drawing labels and distance |
|---|---|
| RS-485 | 9: A; 10: B ≤1,000 m |
| RS-232 | 8: GND; 9: RXD; 10: TXD ≤15 m |
Serial configurations use Modbus RTU at 1,200–19,200 bps, with one start bit, eight data bits, one stop bit and no parity. The RS-232 microprinter configuration supports manual, timed and alarm printing.
| Thermocouple / mV | A: −; B: + |
|---|---|
| Three-wire Pt100 | A, B and C; paired leads at B and C |
| Current signal | A: −; D: +; separately powered transmitter example |
Illustrated main-instrument connections
The main instrument drawing distinguishes its common retransmission and alarm terminals from the separate alarm and retransmission sub-units.
- Common retransmission
- 11: −; 12: +; mA or voltage version
- Sub-unit link
- 4: +; 5: −
- Cold-junction compensation
- 1: black; 2: yellow; 3: red wire
- Main-power versions
- DC: 13 + / 14 −; AC: 13 L / 14 N
- Auxiliary outputs
- 1P: 15 − / 16 +; 2P: 17 − / 18 +
- Common alarm AL2
- 19 NC / 20 common / 21 NO
- Common alarm AL1
- 22 NC / 23 common / 24 NO
Configuration and selection
Input and alarm configurations
Thermocouple, three-wire Pt100, current or voltage inputs. Resistive-load alarm contacts are rated 220 V AC / 2 A or 24 V DC / 2 A.
Main supply and auxiliary output
Main power versions: 100–240 V AC/DC, ≤5 W (AC: 50/60 Hz), or 20–29 V DC, ≤3 W.
Auxiliary output: 24 V DC ±1 V, ≤30 mA, with load resistance ≥750 Ω.
Technical reference
Specifications and options
| Parameter | Specification or option |
|---|---|
| Model | HPT-F |
| Mounting | Panel-mounted |
| Indication | LED |
| Accuracy | ±0.2% FS |
| Input configurations | Thermocouple / three-wire Pt100 / current / voltage |
| Alarm functions | Over-range flashing indication; upper/lower-limit contact alarms with deadband |
| Alarm contact rating | 220 V AC / 2 A or 24 V DC / 2 A; resistive load |
| Communication configurations | RS-485 two-wire / RS-232 |
| Communication protocol | Modbus RTU |
| Serial format | 1 start bit, 8 data bits, 1 stop bit, no parity |
| Baud rate | 1,200–19,200 bps |
| Communication distance | RS-485: ≤1,000 m; RS-232: ≤15 m |
| Printing output | RS-232 microprinter interface; manual, timed or alarm printing |
| Auxiliary output | 24 V DC ±1 V; ≤30 mA; load resistance ≥750 Ω |
| Main power configurations | 100–240 V AC/DC, ≤5 W (AC: 50/60 Hz); 20–29 V DC, ≤3 W |
| Operating temperature | −10–50 °C; no condensation or icing |
| Brand | WKSENSOR |
| Product reference | HH-842926176590 |
Application scenarios
Applications include oil, chemicals, power, energy, water and industrial automation.
Oil
Pump installations across an oilfield.
Chemicals
Chemical-facility towers and piping.
Power
Outdoor electrical switchyard equipment.
Energy
Photovoltaic panels arranged in rows.
Water
Treatment basins and adjoining walkways.
