Compact-Terminal Sheathed Pt100 and Copper RTD Probes

Compact RTD Probe without Fixed Mounting
Fixed-Thread Compact RTD Probe

Description

Compact-terminal RTD configurations

These sheathed resistance temperature probes use compact pressure-contact terminals and a spring-protected cold end. Pt100 platinum and Cu50 or Cu100 copper sensing elements are available. The version without a fixed mounting device uses a hex-pressed cold-end connection; the fixed-thread version provides a threaded process connection.

Sensor, sheath and range selection

Sensor typeElementSheath materialSheath diameterTemperature range optionsAccuracyMaximum measuring current
WZPK
Platinum RTD		Pt10006Cr18Ni11Ti3mm-200-250°C or -200-420°CClass A or BClass A: ≤2mA; Class B: ≤5mA
4mm, 5mm, 6mm or 8mm-200-420°C or 0-500°C
3YC-52 alloy0-650°C
WZCK
Copper RTD		Cu50 or Cu10006Cr18Ni11Ti5mm, 6mm or 8mm-50-150°C±(0.30+0.006t)°C≤5mA

Choose the temperature range together with its material and diameter. Copper-element diameter choices are limited to 5mm, 6mm and 8mm in this range table. In its tolerance formula, t is the absolute temperature magnitude in °C.

Immersion lengths

Sheath diameterImmersion lengthLead length
8mm100-2500mmUser specified
6mm75-2000mm
5mm75-1500mm
4mm50-1000mm
3mm50-750mm

Mounting and cold-end connection

ConfigurationConnectionAvailable threadThread length
No fixed mountingHex-pressed cold endNoneNot applicable
Fixed-thread mountingFixed process threadNPT1/2, G1/2 or M20x1.5User specified