Omni Instruments
contact icon+44 (0) 1382 443000
+44 (0) 845 9000 601

Contact our technical sales team now to discuss your requirements

help icon
MY BASKET basket arrow


My Cart

You have no items in your shopping cart.

Click basket to edit.


Latest added news blog
MSR175 Shock Transportation Data Logger
Kenny Laidlaw
Oct 01,2018
The MSR175 shock transportation data logger is the newest miniature logger from MSR.  The MSR175 more >
PTM/N Programmable Submersible Depth Sensor

PTM/N Programmable Submersible Depth Sensor

Quick Overview

The PTM/N level transmitter is a programmable depth sensor available with a scalable 4-20mA analogue output. The unit can be supplied preprogrammed to your specific requirements, or with the optional programming kit to allow the unit to be re-ranged by the user. The range is adjustable up to 1:4 of the nominal range of the sensor. The unit is suitable for a water depth from 1m up to 250m and has various options for cabling, accuracy, process connection, seals and can be fitted with ballast weight. Units are also available for hazardous area installations.
Hazardous Area Approved
View Options



  • Piezoresistive measuring element
  • Adjustable 1:4 of the nominal range within -5% to +105%, min 0.5mWC
  • Available preprogrammed to desired pressure range
  • All pressure ranges from 1 to 250mWC
  • Calibration available for all common pressure units mH2O, mWG, mWC etc.
  • Scalable pressure ranges and output signal
  • Available with PE, PUR or FEP (Teflon) cable
  • Reverse polarity and short circuit protected
  • Active Temperature Compensated, -5-50°C (optional -5 to +80°C)


  • Borehole depth monitoring
  • River, lake and canal level measuring
  • Reservoir level monitoring
  • Waste water depth monitoring
  • Water tank level monitoring


Pressure Ranges  From 1 to 250m Water Column
Outputs  4-20mA (2-Wire)
Accuracy  ±0.1%FS (±0.25% below 5mWC)
Power Supply  9-33vDC
Diameter 24mm diameter
Length Closed version: 137mm, Open version: 133mm
Ballast weight: +87mm. 
Operating Temperature  -5 to 80°C

Availability: In stock

Price range : £416.20 - £891.90

Price as configured: £0.00

* Required Fields

Price as configured: £0.00


Part Builder

Description       PTM/N Programmable Depth Sensor, adjustable 1:4 of the nominal range within -5% to +105%.

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

Depth Sensor
PTM/N submersible depth sensor, range 0 to 1 BarG (0-10mWG). Closed version with standard Viton seals and 12m PUR cable connection. Output - 2-wire, 4-20mA. Accuracy ±0.25%. Compensated temperature range -5 to 50°C
View FileDatasheet
   Size: (1.08 MB)
or call us for a quote
Hazardous Area Depth Sensor
PTM/N/Ex Depth Sensor
Programmable Intrinsically Safe Submersible depth sensor. Output - 2 wire, 4 -20mA. Accuracy +/-0.25%. Temp range -5 to 50°C.
View FileDatasheet
   Size: (911.1 KB)

Not Available online

PTM Programming Kits
Interface box for programming of the PTM sensors for Non-Hazardous Applications. Kit includes PC software and RS232 to USB converter.
or call us for a quote
LOGBOX-DA Data Logger in Enclosure with 12V Battery.
LogBox-DA IP65 Data Logger, 1 Analogue & 1 Digital input, for 0-50mV,0-10v and 4-20mA inputs, with 64,000 reading memory, battery life up to 3 years. Fitted in IP67 weatherproof housing with 12V sensor supply for external 4-20mA sensor. Digital channel can be used with a tipping rain bucket to monitor rainfall totals. Safe Area use only.
View FileDatasheet
   Size: (216.68 KB)
or call us for a quote
Software and Download Cable
IrLINK-3-USB Infrared Interface for USB and LogChart Software
or call us for a quote