ZED-Z Counter Electronic

Brand: KOBOLD Instruments, Inc.

The evaluation unit changes the frequency signal of the pickup into a 3(4)-digit flow reading with selectable measurement unit (top display line), and into a scalable analogue signal.

The flow quantity is added up in a part quantity meter and a total quantity meter and then displayed in the bottom line of the screen. The quantity meter's units of measurement are selectable. The two relays with floating output changeover contacts continuously monitor if the freely adjustable limits are exceeded or fallen short of.

Here, it is possible to choose between threshold value and window monitoring. Switching point, hysteresis, a window point, and switch on or off delay can be set separately for each relay.

The switching points can also be set directly by using the control keys without having to change over into the menu. Alternatively, it is also possible to monitor the quantity meter to see if it is exceeded.

A red LED indicates with the switching status. The analogue output is optionally available as current output with 0(4)-20 mA or as voltage output with 0-10 V. The Parameter names can be shown in the menu in German or English.

If used where the flow readings change rapidly, the display can be pacified and the analogue reading averaged by switching on some software. A MIN/MAX reading memory determines the extreme readings of the flow.

The display of the readings and the resetting are achieved by using the keys without having to change into the menu. Resetting by using the keys can also be blocked. If the maximum set flow (exceeded range) is exceeded, it will be shown on the display.

The set parameters can be protected against unauthorized alteration by using a password function.

Specifications

Ambient Temperature Range

  • -20° to 70° C (-4° to 158° F)

Dimensions

  • 3.78" × 3.78" × 4.29" (96 × 96 × 109 mm) - Screw Clamp
  • 4.6" × 4.6" × 5" (117 × 117 × 127 mm) - Field Casing

Display

  • 2 × 8-Digit LCD Display
  • 3 or 4-Digit
  • Alphanumeric LCD

Electrical Connectors

  • Cable
  • Plug-In Terminal Strip

Enclosure / Body Material

  • Fibreglass Reinforced Noryl
  • Powder-Coated Aluminum

Environmental Protection

  • IP00
  • IP40
  • IP65

Frequency

  • 0.2 to 2,000 Hz

Input

  • 5-24 Vdc
  • NAMUR Supply: 8.2 Vdc
  • TTL

Mounting

  • DIN Form B Connection Head
  • Pipe
  • Wall Mounted

Output

  • 0(4)-20 mA
  • 0-10 V

Output Load

  • 500 ohms - Maximum

Relay Output

  • 2 Changeover Contacts
  • 250 Vac/Vdc
  • 5 A / 1,000 VA

Sensor Input

  • 23 V (At 24 Vdc) / Maximum
  • 24 V (AC Supply) / Maximum

Supply Voltage

  • 24 Vdc ± 20 %, Approximately 80 mA
  • 90-250 Vac / Maximum

Switch Type

  • NPN Transistor
  • PNP Transistor

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