GfG ZD22-702-DM, ZD22 Series, Fixed Transmitter, Transmitters with Sensor, Oxygen (O2) MK 435-1, with display, Modbus , 0 - 2% vol.

ZD22 Series, Fixed Transmitter, Transmitters with Sensor, Oxygen (O2) MK 435-1, with display, Modbus , 0 - 2% vol., GfG ZD22-702-DM

ZD22 D Series Fixed Transmitters - Transmitter with display for selective oxygen monitoring, by GfG Instrumentation

ZD22 D Transmitter - Reliable O2 detector with display. If you need to reliably monitor oxygen over a long period of time, the ZD22 D transmitter is a durable and economical solution. The ZD22 D transmits measured values and status indications via analog (0.2-1 mA or 4-20 mA) or digital (RS-485) signal, while also displaying them on site. In the event of an alarm, its internal buzzer will warn everybody in the vicinity using a loud acoustic signal. In combination with GfG's reliable controllers it can be installed in new gas detection systems or retrofitted into existing ones.

The ZD22 D detects oxygen using a zirconium dioxide sensor (ZD), which is not susceptible to ambient conditions and sensor poisons. The current measured value is displayed on the 2.2-inch display, which lights up red in the event of an alarm. The long-life sensors make the ZD22 D an economical solution for the detection of oxygen in the measuring ranges 10 to 1,000 ppm and 0.01 to 96 % by volume. Its automatic temperature compensation and the linearization of the measuring signals ensure high measuring accuracy.

Functional safety and device protection

The hardware of the ZD22 D complies with the European Functional Safety Standard DIN EN 61508-2: 2011 (SIL). The housing is protected against the ingress of dust and water (protection class: IP54). An optional weatherproof housing provides additional protection.

Communication and service

Signals are transmitted via the analog industrial standard (optionally 0.2-1 mA or 4-20 mA) or the digital RS-485 interface (Modbus protocol). The ZD22 D uses two status LEDs to indicate its operating status. The intuitive built-in button interface facilitates service and adjustments on site (one-person adjustment). The multicolor backlit display shows the current measured value, status notifications and the ZD22 D's menu. Test gas for function tests can be inserted via a calibration adapter.

Key features and General Information at a glance:

• Measuring principle: Zirconium dioxide (ZD).
• For oxygen.
• Expected sensor lifetime: 4-5 years.
• 2.2-inch color display, built-in button interface, buzzer.
• Signal transmission: 0.2-1 mA / 4-20 mA / RS-485.
• Protection class: IP54.

Approvals / Certifications:

SIL 2/3 (hardware)

Optionally available:

RC22 operating unit, weatherproof housing, calibration adapter.

HAZMAT Item: No

New: Yes

Type: ZD22-702-DM, ZD22 Series, Fixed Transmitter, 0 - 2% vol.