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QTQUANTARA量川 · PROCESS MEASUREMENT
Products & specifications

Choose the family by what you measure. Define the model by site conditions.

Below are representative models and typical values for five families. Process connections, outputs and electrical connections can be combined within a family; the confirmation defines the exact configuration.

Values on this page are typical and intended for initial selection. Official values come from the datasheet and factory test record.

SIGNAL CHAINPT / TT / FM / LV / SC
SENSORISOLATECONVERTMODBUS
4–20 mARS-485MODBUSIP67
PTFamily 01

Pressure transmitters

Gauge, absolute and differential pressure for gas, steam and liquid lines.

Typical installation

Pump discharge, filter differential pressure, steam mains

PT offers two sensing routes: piezo-resistive for fast response in clean media, and thin-film capacitive for better overload and corrosion behaviour in chemical and wastewater duty. Housings are die-cast aluminium or 316L stainless steel, with M12 connector or terminal wiring.

Configuration options

  • G1/2, NPT1/2, clamp and flange connections
  • LCD display with two switch outputs
  • Hygienic flush diaphragm
  • High-temperature stand-off (media ≤ 150 °C)

Typical specifications

Range
0–10 kPa … 0–60 MPa
Reference accuracy
±0.1% FS (high-accuracy version ±0.05% FS)
Output
4–20 mA / 0–10 V / RS-485
Supply
12–36 V DC
Wetted material
316L / Hastelloy C-276
Protection
IP65 / IP67
TTFamily 02

Temperature sensors

Pt100 / Pt1000 and thermocouple probes with optional integrated transmitter.

Typical installation

Heat exchanger circuits, tanks, CIP lines

TT combines a sheathed probe, connection head and optional transmitter module. Probe diameter and immersion depth follow line size and flow velocity; surface measurement uses magnetic or clamp mounting.

Configuration options

  • Sheathed probe 3 / 6 / 8 mm
  • Integrated temperature transmitter
  • Hygienic clamp connection
  • Surface measurement accessories

Typical specifications

Sensing element
Pt100 / Pt1000 / type K thermocouple
Measuring range
−40…150 °C (probe and sheath dependent)
Reference accuracy
±0.3 °C at 0 °C (class A element)
Output
4–20 mA / RS-485 / direct resistance
Sheath
316L stainless steel
Connection
Thread / clamp / flange
FMFamily 03

Electromagnetic flow meters

Volumetric flow of conductive liquids, compact or remote design.

Typical installation

Dosing lines, raw water metering, cooling and discharge

FM uses low-frequency rectangular-wave excitation with empty-pipe detection and bidirectional totalising as standard. Liners are PTFE or rubber; electrodes are 316L, Hastelloy or titanium by medium. Remote versions suit hot or high-vibration locations.

Configuration options

  • Compact or remote transmitter
  • Empty-pipe detection and bidirectional flow
  • Grounding rings and installation kit
  • Totaliser configuration for billing checks

Typical specifications

Line size
DN15 … DN300
Reference accuracy
±0.5% of reading (±0.3% optional)
Conductivity
≥ 5 μS/cm
Output
4–20 mA + pulse / RS-485
Liner
PTFE / rubber
Protection
IP65 / IP68 (optional)
LVFamily 04

Level instruments

Submersible, radar and ultrasonic principles, chosen by basin and medium.

Typical installation

Collection wells, dosing tanks, clear-water basins, open channels

Submersible units suit clean and wastewater basins at low cost but need attention to sludge and entanglement. Radar handles foam, steam and corrosive gas. Ultrasonic suits open basins and channels, away from strong wind and condensation.

Configuration options

  • Submersible hydrostatic level
  • 80 GHz radar level
  • Ultrasonic open-channel accessories
  • Surge protection module

Typical specifications

Range
0–5 m … 0–20 m
Reference accuracy
±0.25% FS
Output
4–20 mA / RS-485
Connection
Thread / flange
Media temperature
−20…80 °C
Protection
IP67 / IP68
SCFamily 05

Signal conditioning & gateways

Isolation, conversion and Modbus aggregation into one outlet.

Typical installation

Control cabinet retrofits, legacy instrument integration, data aggregation layers

SC includes single-channel isolators, splitters, surge protection and Modbus gateways. DIN-rail mounting, 24 V DC supply, with isolated power for two-wire transmitters.

Configuration options

  • One-in two-out signal splitting
  • Isolated supply for two-wire transmitters
  • Surge protection and earth terminals
  • Edge pre-processing and wire-break alarms

Typical specifications

Channels
1 / 2 / 4 channels
Isolation
1500 V AC
Input
4–20 mA / 0–10 V / Pt100
Output
4–20 mA / RS-485
Protocol
Modbus RTU / Modbus TCP
Mounting
35 mm DIN rail

What we need to select a model

Four points are usually enough to fix the family and connection. Anything missing is flagged as open in our reply.

For safety-interlock or billing measurement points, say so during selection; we will list the verification documents that are additionally required.

Submit your process data
  1. 01

    Medium and condition

    Medium, concentration, particles or crystallisation, hygienic requirements.

  2. 02

    Process values

    Normal and peak pressure, media temperature, flow range or basin depth.

  3. 03

    Installation

    Line size and material, mounting position, straight runs, ambient temperature and vibration.

  4. 04

    Electrical and control

    Supply, output protocol, display or switches, and the control system it connects to.