Testo 6682 Humidity Transmitter

Humidity transmitters for explosive environments.

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Manufactured
Includes

Features

  • ±1% RH Accuracy
  • Designed for use in explosive environments
  • Uses Testo 6616 digital probe
  • Self-monitoring and early warning displays
  • Internal event log
  • Display with user menu
  • Protection class:
    • ATEX II 2(1) G Ex ia [ia] IIC T4 (Testo 6682 transmitter)
    • ATEX II 1/2 G Ex ia IIC T4/T3 (Testo 6616 probe)
This product requires the
Testo 6616 Ex Digital Probe

The Testo 6682 humidity transmitter for explosive applications meets the most stringent requirements for process monitoring in explosive environments for pharmaceutical, chemical and process engineering. The Testo 6682 humidity transmitter features high accuracy at ±1% RH ensuring long-term stability. Operational costs are kept to a minimum with the transmitters own preventive maintenance functions through self-monitoring and early warning alerts that are sent to transmitter display. The Testo 6682 also has its own internal log providing and event history.

The Testo 6682 humidity transmitter utilizes the Testo 6616 digital humidity probe which can be easily replaced by hand. Each Testo 6616 digital humidity probe has its own serial number and internal log which stores how long the probe has been used and configuration data, which is available for display on the transmitters operating menu.

Testo 6682 humidity transmitters are intended for protection class ATEX II 2 (1) G Ex ia[ia] IIC T4. The Testo 6616 digital humidity probe that is used with the Testo 6682 is intended for protection class ATEX II 1/2 G Ex ia IIC T4/T3. The sensor tip can be used in a Zone 0 explosive area, the transmitter in Zone 1. Basic safety and health requirements are fulfilled by compliance with EN 60079-0:2006, EN 60079-11:2007 as well as EN606079-26:2007 for Testo 6616.

Feature Testo 6682
Humidity Transmitter		 Testo 6616
Humidity Probe
Humidity Parameters %RH/°Ctd/°Ftd, as well as all the parameters shown
Temperature Parameters °C / °F
Humidity Range 0 to 100% RH
Temperature Range -30 to 150°C / -22 to 302°F
Depending on application location and type for safety reasons there may be a limited measurement range in the explosive area. Please observe separate safety information and the explosion temperature class.
Humidity Accuracy ± (1 RH% + 0.007 x reading) 0 to 90 %RH
± (1.4 RH% + 0.007 x reading) 90 to 100 %RH
+0.02 %RH per Kelvin depending on the process and electronics temperature (if deviated from 25°C / 77°F)
Temperature Accuracy ± 0.15°C / 0.27°F (PT1000 1/3 Class B)
Resolution 0.1% RH or 0.01°C / 0.01°F -
Measuring rate 1/s -
Power Supply 2 wire: 4 to 20 mA, current loop from certified
intrinsically safe power units
U0 = 28V ; I0 = 93; P0 = 650 mW		 -
Analog output 4 to 20 mA ±0.03 mA (2-Wire) -
Analog output resolution 12 bit -
Display 2 line LCD with plain test line -
Application temperature housing With display =-20 to 70°C/32 to 122°F -
Protection class IP 65, if the transmitter is connected or sealing plugs are inserted in the cable entry point -
Guidelines, standards, tests 94/9/EG (ATEX), EN 60079-0:2006, EN 60079-11:2007, EU Guideline: 2004/108/EU EN 60079-0:2006, EN 60079-11:2007, EN 606079-26:2007, 94/9/EG (ATEX), EU Guideline: 2004/108/EU