Digi-Stem® DST700 Series Advanced RTD Probes

Digi-Stem Meters & Probes are sold separately and used together to create a complete custom system. This listing is for the probe only.

Please review our Order Guide and choose the stem length, fitting, and other specifications needed to build a complete probe.

Description

Digi-Stem® meters and probes are sold separately for a completely customizable system.  Pair your Digi-Stem® DST700 Series Meter with an adjustable angle, straight or angle rigid, or Easy Connect remote probe to meet the requirements of your installation.  Cables for remote probes are available with IP67 rated Easy Connect connector options on the meter and/or probe side.

Use the Easy Connect option for remote style probes to disconnect the meter and probe for calibration, while leaving the cable in place for easy removal and replacement. Save time and simplify the calibration process by switching out your installed meter and sending it back to Wahl for calibration.  Calibrate the meter only and maintain accuracy. Wahl 4-Wire Class A RTD probes are highly accurate, with two wires connected to each terminal to cancel out resistance errors. When properly installed and maintained, a high-quality Wahl RTD probe, with MgO packed MI Cable, can remain stable within 0.1°C tolerance for up to 10 years.

Digi-Stem® DST700 Series probes utilize DIN EN 60751 Pt100 Class A 4-wire platinum RTD Sensors in MgO packed MI Cable for durability and longevity.  Sanitary probes meet the requirements of 3A Standard 74-06.

To build your probe, refer to our probe configuration matrix.  Choose one option from each section to build a standard probe configuration.

Don't see what you need?  We build custom designed probes to meet the requirements of special applications.  Contact us for more information.

Specifications

RTD Sensor

Pt100 Class A 4-wire platinum RTD sensor in MgO packed MI Cable. R0 = 100Ω, Alpha = .00385 Ω/Ω/°C

Process Connection

1/2 inch NPT Fitting
3/4 inch NPT Fitting
1-1/2 inch diameter 3-A Sanitary Standard 74-06; Welded Only, 316L SS Only
2 inch diameter 3-A Sanitary Standard 74-06; Welded Only, 316L SS Only
2-1/2 inch diameter 3-A Sanitary Standard 74-06; Welded Only, 316L SS Only
3 inch diameter 3-A Sanitary Standard 74-06; Welded Only, 316L SS Only
1-1/4 inch x 18 NEF2 Swivel Nut Fitting
1/2 inch NPSM Swivel Nut Fitting
Unthreaded Transition Fitting

Mounting Style

Adjustable Angle (Not available on Remote Stems), Rigid (Bottom Connected), Remote (Meter Mounting Bracket sold separately)

Probe Stem Type

Welded, Spring Loaded for 1/2 inch NPT and 3/4 inch NPT process connections and 1/4 inch stem diameter only

Probe Stem Material / Construction

304 SS, Temp Rating 400°F (204°C)
316L SS, Temp Rating 400°F (204°C): not available with tapered bulb
304 SS, Temp Rating 1472°F (800°C)
316L SS, Temp Rating 1472°F (800°C): not available with tapered bulb

Probe Stem Diameter

1/4 inch, 3/8 inch, 5/8 inch stem with 7/16 inch tapered bulb (only available in 3.5 inch, 6 inch, 8 inch, 9 inch, and 12 inch lengths), 1/2 inch

Probe Stem Length

Up to 72 inches in length, in 1/4 inch increments

Remote Probes Only: Meter Connection to Cable

Fixed (Cable attached to meter via 1/2 inch NPT fitting, must be disconnected from PCB to separate from meter.), Quick Disconnect - Straight Connection (Cable attached via IP68 rated TURCK 4-pin plug & receptacle), Quick Disconnect - 90° Connection (Cable attached via IP68 rated TURCK 4-pin plug & receptacle)

Remote Probes Only: Cable Type

PVC, Temperature Rated 221°F / 105°C

Remote Probes Only: Cable Length

Up to 200 meters in length. Specify exact length required.

Remote Probes Only: Cable Connection to Probe

Fixed (Cable permanently attached to probes process fitting), Easy Cconnect - Straight Connection (Cable attached via IP68 rated TURCK plug & receptacle), Easy Connect - 90° Connection (Cable attached via IP68 rated TURCK plug & receptacle)