APM-1 Transmitter/Controller

Brand: KOBOLD Instruments, Inc.

The KOBOLD compact transmitter / controller APM-1 measures and controls the pH value or redox potential in aqueous solutions. It is available as panel-mounted device according to DIN/EN 61554 or as field housing. Measured values and parameters are displayed on a high contrast graphic display in plain text.

Easy configuration via buttons or PC with optional software provide a simple and user friendly operation. An integrated math and logic module enables the integration of the measured values in mathematical formulas so that the measured variables can be displayed.

The transmitter has two Analog and two binary inputs. The two control relays can be used as limit value or two position, three position, three position controller or continuous controller with P-, PI-, PD- or PID action.

The modular units can be retrofitted with 3 plug-in boards and so be upgraded flexibly for different measuring and control task.

Specifications

Accuracy

  • ± 5 ohms
  • ≤ 0.05 % (Resistance ± 4 ohms)
  • ≤ 0.3 % of Measuring Range
  • ≤ 0.5 %
  • ≤ 1.5 % - of Measuring Range
  • 0.25 % of Measuring Range

Ambient Temperature Range

  • -10° to 150° C (15° to 300° F)
  • -5° to 50° C (23° to 122° F) - Field Housing
  • -5° to 55° C (23° to 131° F) - Panel Mounting

Circuit Protection

  • Varistor

Communication

  • Baud Rate: 9,600, 19,200, 38,400 bit/sec
  • RS-422, RS-485 Modbus, Modbus Integer Communication Protocol
  • RS-485 with Data Logger - Optional

Consumption

  • 13 VA, Maximum

Display

  • 122 × 32 Pixel LCD Graphic Display with Clue Backlight

Electrical Connectors

  • Changeover Contact
  • Screw Terminal

Electrical Rating

  • 1 A at 240 Vac
  • 3 A at 240 Vac Resistive Load
  • 5 A at 240 Vac - Resistive Load
  • 8 A at 240 Vac Resistive Load

Enclosure, Body Material

  • Aluminum
  • Plastic - for Panel Mounting

Environmental Protection

  • IP20 (Rear) - Field Housing
  • IP65 (Front) - Installation Housing

Humidity

  • ≤ 90 % Relative Humidity, Annual Mean
  • Non-Condensing

Input

  • 0 (4) to 20 mA
  • 0(2) to 10 V
  • 0(4) to 20 mA
  • 0-1 V
  • 0-10 V

Loop Resistance

  • ≤ 500 ohms - Load Resistance
  • Input Resistance > 100 ohms

Mounting Position

  • Horizontal

Output

  • ± 5 Vdc, 5 mA
  • 10 mA
  • 2 Relay (Change over Contact)
  • 5 A at 240 Vac Resistive Load
  • Relay

Power Requirement

  • 110-240 Vac
  • 12 Vdc
  • -15 / +10 %, 48 to 63 Hz - Standard
  • 20-30 Vac/Vdc
  • 48 to 63 Hz - Special

Storage Temperature

  • -30° to 70° C (-22° to 158° F)

Supply Voltage

  • 17 Vdc at 20 mA
  • 25 Vdc Open Circuit Voltage Approximately

Temperature Effect

  • 0.1 %/10 K Ambiet Temperatire Effect
  • 0.2 %/10 K- Ambient Temperature Effect
  • 100 ppm/K

Temperature Range

  • -50° to 250° C (-58° to 482° F)

Voltage Drop

  • ≤ 1.5 V

Show More