Positioner

HH-TZID-C intelligent positioners

The positioner TZID-C is an intelligent, parameterization, and communication-device for mounting to pneumatic actuators. In the functional center of the end of the microprocessor operating program of the CPU is at a sampling rate of 20ms and an A / D and D / A conversion in 4000 steps. The activation of the actuator is continuous with an I / P module with a downstream 3/3-way valve. The 3/3-way valve adjusted proportional to the outlet to the working or venting of the actuator. Programming and monitoring of the operation can be performed either with the default built-in control panel or via the communications port on the basis of the HART® protocol with a PC.

The following characteristics of the positioner TZID-C to ensure
safe operations on site at the actuators:

Compliance with the EMC Directive
Solid aluminum case with IP65 protection
High shock and vibration resistance up to 10g
Assured operation through ongoing monitoring and error message in case of malfunction
Operation at ambient temperatures of -30°C ... +85°C

Specifications

Input
Ajustment range: 4...20 mA nominal range, Split range configuration between 20...100% of the nominal range
Two-wire technology
Max.             50mA
Min.             3.6mA
Starting at 3.8mA
Load voltage at 20mA 9.7V
Impedance   at 20mA 485 Ω
Digital input
Control voltage 12...24 V DC
Current max. 4mA

Output
Compressed air output:
Range 0...6 bar (0...90 psi)
Air capacity at 1,4 bar (20 psi) supply pressure
5,0 kg/h = 3,9 Nm3/h = 2,3 scfm
at 6 bar (90 psi) supply pressure
13 kg/h = 10 Nm3/h = 6,0 scfm
Output function
For single or double-acting actuators, air is vented from actuator or actuator is blocked in case of (electrical) power failure
Shut-off values
End position 0% = 0 ... 45%
End position 100% = 55 ... 100%
Digital output (control circuit to DIN 19234/NAMUR)
Supply voltage 5...11V DC
Current > 0.35 mA … < 1.2 mA
Switching state logical “0”
Current > 2.1 mA
Switching state logical “1”
Effective direction (configurable)
normally logical “0” or logical “1”

Travel
Rotation angle, Used range:
25...120° (rotary actuators, optional 270°),
25...60° (linear actuators)

Travel time prolongation
Range of 0 ... 200 seconds, separately for each direction.

Air supply
Instrument air: free of oil, water and dust acc. to DIN / ISO 8573-1 pollution and oil content according to Class 3
(purity: max. particle size: 5 μm, max. particle density: 5 mg / m3; oil content: max. concentration: 1 mg / m3;
pressure dew point: 10 K below operating temperature.
Supply pressure: 1,4...6 bar (20...90 psi)
Note: Do not exceed the max. operating pressure of the actuator!
Air consumption < 0.03 kg/h / 0.015 scfm (independent of supply pressure).

Environmental capabilities
Ambient temperature: -40 … 85°C for operation, storage and transport
Relative humidity: 75 % (annual average), noncondensing

Housing
Material / Protections:
Aluminum, protection class IP 65
Electrostatic dipping varnish with epoxy resin, stove-hardened. Case
varnished black, RAL 9005, matte, housing cover Pantone 420
Electrical connections
Screw terminals: Max. 2.5 mm2 for analog signal
Cable entry:
2 tap holes 1/2-14 NPT or M20 x 1.5 (1 x with cable gland and 1 x with pipe plug)
Pneumatic connections: Threads G 1/4 or 1/4-18 NPT
Weight 1,7 kg