Digi-Stem Thermometers and Transmitters

Wahl’s Digi-Stem Thermometer and Transmitter Systems provide digital accuracy and reliability for temperature measurements in rugged industrial environments. A variety of rigid stems and remote interface connections accommodate most installations.

• Selectable Stems, Integral or Remote
• Large 1 inch LCD Continuous Display
• Easy to Read from Over 20 Feet
• Battery Operated
• Meter Accuracies from ±0.3°F (±0.2°C)
• Factory Calibration Lot Traceable to NIST
• Direct Replacement for Bimetal, Mercury-in-Glass, Bulb and Capillary Thermometers
• Temperature Ranges from 0 to 800°F (-20 to 425°C)
• Easy to Install
• NEMA-4X Stainless Housing
• Hose-Down Proof, Vibration Tolerant
• Optional RTD or Thermocouple Output
• 4-20mA Transmitter with Local Display, Loop Power

Remote Sensor Systems

Digi-Stem is offered in a variety of configurations to measure process temperatures remotely located from the meter. Optional remote sensor cables are available with different stem configurations. Stems can be specified for a variety of process connections or interfaces, including different thermowell adapters, penetration probes and immersion probes.

RTD or Thermocouple Output

Direct Connection: Wahl provides Digi-Stems with optional dual-element temperature sensors in the stem for direct connection to recorders and controllers. The primary sensor drives the local display while the dedicated secondary sensor (RTD or Thermocouple) provides access to a 3- or 4-wire RTD circuit or a Thermocouple system interface. The connecting port is 1/2" NPT.
In Situ Calibration: Specify option DSA392M or DSA392HP for in situ calibration of Digi Stem Model DST200 without removal from a process. This instrument has an RTD as the secondary sensor, which allows single-point calibration using Wahl’s highly accurate platinum-RTD Heat Prober 392 Meter. This provides the accuracy of a laboratory calibration,
and saves time as well as money.

Transmitter Systems

Wahl offers loop-powered transmitter versions of Digi-Stem with continuous, digital, local display. The transmitter is an integral meter and electronics assembly in NEMA-4X housing with a 4-20mA, 2-wire current loop. Model DSX300 has a temperature range of 0 to 300°F (-18 to 150°C), while Model DSX310’s range is 200 to 800°F (100 to 425°C). The transmitters incorporate all Digi-Stem family features, including stainless steel construction, large digital display, reliability, and rugged construction.