H1QT Temperature Sensor Datasheet
Introduction
H1QT is a industrial-grade, fully calibrated digital temperature transducer; primarily designed to measure temperature in distribution pipes of gases and/or liquids. The solution offers a wide range of electrical connectivity options including RS485 and USB. The unit communicates using multiple protocol options. The unit offers multiple choices of physical connectors and can be used in a variety of environments.
Application
Temperature sensor H1QT is designed for precision measurement of temperatures of gases and/or liquids inside distribution piping or open air. The main measurement body is made from stainless steel, so any measured medium which does not react with stainless steel (DIN 1.4301) can be measured.
The sensor uses very sensitive probe to measure temperature in the tip of the probe. The sensor is fully calibrated and linearized.
Sensors are designed, assembled and tested in EU under full EU legislation.
Mechanical information
The transducer is enclosed in a robust stainless steel enclosure. Rest of the body is made from UV-stabilized ABS-based plastics.
Technical parameters
| Type of measurement | temperature |
| Maximum measurement range | -40 to 120C |
| Max pressure of measured medium | 2 MPa |
| Measurement precision | 0.1% of measured range this combined precision accounts for non-linearity of measurement, hysteresis and repeatability |
| Long-term drift | less than 0,03 deg. Celsius per year |
| Recommended calibration frequency | once every three years |
| Operating temperature | -40 to 85C |
| Power supply | 5V - 30V DC |
| Communication protocol | MODBUS RTU or SDI-12 or HTTP/JSON or MODBUS TCP/IP |
| Mounting options | see order table below |
| Thread material | DIN 1.4301 (AISI 304 / X5CrNi18 10) stainless steel |
| Plastic enclosure material | ABS - ASA |
| Isolation resistance at 500V | RIZ > 2 M Ohm |
| IP protection grade according to (IEC 60 529) EN 60 529 | IP 66, also available as IP68 for full long-term liquid immersion |
Temperature measurement
Info
Ethernet version of temperature sensor H1QT-ETH supports up to 1Hz measurement cadency. All other versions support up to 20Hz measurement cadency.
Dimensions
Dimensions in [mm]
Software
Testing applications and SDK and integration tools are promptly available on request via info@quorumprecision.com
Label description
Information included on the label:
- Manufacturer
- Full order code
- Measurement range and precision
- Serial number
- IP rating
Ordering
Order shall contain the following information:
- Date and reference order number
- Name and address of customer (including VAT number where appropriate)
- Order code assembled from order tables including number of units and requested delivery date
- Type of shipping
- Optional extras to include (for example calibration certificates)
Order codes table
| Measurement range (M) | |
| M0 | -30C to +110C |
| MX | special - on request |
| Measurement precision (% of measurement range) (P) | |
| P0 | 0.4% |
| PX | special - on request |
| Communication transceiver (R) | |
| R0 | TTL / UART |
| R1 | RS-485 (TIA-485(-A) / EIA-485) |
| R2 | USB 1.x (Win, Linux, MacOS drivers) |
| R3 | Ethernet (10Base-T) + PoE (802.3af) |
| RX | special - on request |
| Connector type (A) | |
| A0 | Weipu SP2112/P7 (IP68) |
| A1 | Valve connector DIN 43650-A (IP65) |
| A2 | USB Type-B (IP50) |
| A3 | Hirschmann CA3GS (IP67) |
| A4 | RJ45 (IP50) |
| A5 | SENTRY S1A (IP65) |
| A6 | Hirschmann CA6GS (IP67) |
| AX | special - on request |
| Communication protocol (C) | |
| C0 | MODBUS RTU |
| C1 | SDI-12 |
| C2 | HTTP JSON |
| CX | special - on request |
| Mounting thread (T) | |
| T0 | M20x1.5 |
| T1 | G1/2 |
| T2 | G1/4 |
| T3 | NPT 1/2 |
| TX | special - on request |
| Probe length including mounthing thread (L) | |
| L0 | 100mm |
| L1 | 160mm |
| L2 | 250mm |
| L3 | 400mm |
| LX | special - on request |
| Probe diameter (D) | |
| D0 | 8mm |
| D1 | 6mm |
| DX | special - on request |
Order code example: H1QT-M0-P0-R1-A0-C0-T2-L2-DX=10mm
Measurement range (M0): -30C to 110C
Measurement precision (% of measurement range) (P0): 0.4%
Communication port (R1): RS-485
Physical connector (A0): Weipu SP2112/P7 (IP68)
Communication protocol (C0): MODBUS RTU
Mounting thread (T2): G1/4
Probe length including mounthing thread (L2): 250mm
DX - special request - probe diameter = 10mm
Packaging
Sensors are packed individually into padded cartons.
The packaging includes all information required for proper use and servicing of the equipment.
Installation
Physical installation of the sensor
The sensor is screwed onto the measurement place with appropriate spanner (24mm). The threads on the measurement place and sensor must match! Tightness of the connection is ensured by appropriate gasket – not a part of the standard delivery.
The following tables show functionalities of the pins on the sensor side of the connection for different combinations of physical connectors and transciever types.
S1Q connector "A5" with TTL "R0"
| Spring pin on sensor | Sensor function | Notes |
|---|---|---|
| 7 | UART RX | 3v3 domain |
| 12 | UART TX | 3v3 domain |
| 18 | DC to power sensor | Supply DC power to this pin |
| 19 | GND | Supply GND to this pin |
Other pins must stay unconnected.
Weipu SP2112/P7 "A0" with TTL "R0"
| Pin | Function | Notes |
|---|---|---|
| 1 | not connected | leave unconnected |
| 2 | GND | Supply GND to this pin |
| 3 | UART TX | 3v3 domain |
| 4 | internally shorted to pin 6 | leave unconnected |
| 5 | VCC | Supply DC power to this pin |
| 6 | internally shorted to pin 4 | leave unconnected |
| 7 | UART RX | 3v3 domain |
Valve connector "A1" with TTL "R0"
| Pin number | Function | Notes |
|---|---|---|
| 1 | VCC | Power Supply (+) |
| 2 | GND | Supply GND (-)to this pin |
| 3 | TTL / UART TX | |
| 4 | TTL / UART RX |
Valve connector "A1" with RS485 "R1"
| Pin number | Function | Notes |
|---|---|---|
| 1 | VCC | Power Supply (+) |
| 2 | GND | Supply GND (-) to this pin |
| 3 | RS485: A | |
| 4 | RS485: B |
Hirschmann CA3GS "A3" with TTL "R0"
| Pin number | Function | Notes |
|---|---|---|
| 1 | VCC | Supply DC to this pin |
| 2 | UART TX | |
| 3 | UART RX | |
| 4 | GND | Supply GND to this pin |
Hirschmann CA3GS "A3" with RS485 "R1"
| Pin number | Function | Notes |
|---|---|---|
| 1 | VCC | supply DC to this pin |
| 2 | RS485: A | |
| 3 | RS485: B | |
| 4 | GND | Supply GND to this pin |
Hirschmann CA6GS "A6" with RS485 "R1"
Hirschmann CA6GS (7pin) connector, for cable connection use Hirschmann CA6LS.
| Pin number | Function | Notes |
|---|---|---|
| 1 | VCC | Power supply to sensor - keep powered for autonomous measurements and archiving |
| 2 | GND | |
| 3 | RS485: A | |
| 4 | RS485: B | |
| 5 | keep not connected | |
| 6 | WAKEUP | Pulling low (to GND) wakes up the sensor for communication. Permanently wire to GND to disable sleep. |
| 7 | keep not connected |
Default connectivity configuration
Default TTL/UART configuration: 38400 baud, 8N1 ( => 1 start bit, 8 data bits, 1 stop bit, no parity)
Default communication protocol: MODBUS - implementation information: ML MODBUS version 1
Contacts
For support please contact your distributor or manufacturer directly via info@quorumprecision.com