ES-3675 Rev.3
KEHZN
Plug-in Signal Conditioners K-UNIT
FREQUENCY TRANSDUCER
(self-powered)
Functions & Features
• Providing a DC output signal in proportion to deviation (±5 Hz) from center frequency (50 Hz or 60 Hz)
• DC output containing little ripple is ideal for computer input
• Isolation up to 2000 V AC
• High-density mounting
• No auxiliary power source required
Typical Applications
• Centralized monitoring and control of power management system in manufacturing facility or building
• Measuring frequency for UPS
MODEL: KEHZN–[1][2][3][4]
ORDERING INFORMATION
• Code number: KEHZN-[1][2][3][4]
Specify a code from below for each of [1] through [4].
(e.g. KEHZN-11A/Q)
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
[1] INPUT
1
: 45 – 55 Hz
2
: 55 – 65 Hz
3
: 45 – 65 Hz
[2] INPUT
1
: 110 V AC
2
: 220 V AC
[3] OUTPUT
Current
A
: 4 – 20 mA DC (Load resistance 600 Ω max.)
D
: 0 – 20 mA DC (Load resistance 600 Ω max.)
E
: 0 – 16 mA DC (Load resistance 750 Ω max.)
F
: 0 – 10 mA DC (Load resistance 1200 Ω max.)
G
: 0 – 1 mA DC (Load resistance 12 kΩ max.)
J
: 0 – 5 mA DC (Load resistance 2400 Ω max.)
Z
: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1
: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2
: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3
: 0 – 1 V DC (Load resistance 1000 Ω min.)
4
: 0 – 10 V DC (Load resistance 10 kΩ min.)
5
: 0 – 5 V DC (Load resistance 5000 Ω min.)
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
0
: Specify voltage (See OUTPUT SPECIFICATIONS)
[4] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals
Screw terminal
: Chromated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output
Computation
: One-shot
Overrange output
: Approx. -10 to +120 % at 1 – 5 V
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
INPUT SPECIFICATIONS
Input burden
: 3 VA
Overload capacity
: 110 % of rating (continuous)
Operational range
: 85 – 110 % of rating
OUTPUT SPECIFICATIONS
■ DC Current
: 0 – 20 mA DC
Minimum span
: 1 mA
Offset
: Max. 1.5 times span
Load resistance
: Output drive 12 V max.
■
DC Voltage
: 0 – 12 V DC
Minimum span
: 5 mV
Offset
: Max. 1.5 times span
Load resistance
: Output drive 1 mA max.; at ≥ 0.5 V
INSTALLATION
Operating temperature
: -10 to +55°C (14 to 131°F)
Operating humidity
: 30 to 85 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 300 g (0.66 lb)
PERFORMANCE in percentage of span
Accuracy
: ±1 % (at 23°C ±10°C or 73.4°F ±18°F)
Response time
: ≤ 1 sec. (0 – 100 % ±1 %)
Ripple
: 0.5 %p-p max.
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @1 minute
(input to output to ground)
Impulse withstand voltage
: 1.2 / 50 μsec., ±5 kV
(input to output or ground)
CONNECTION DIAGRAM
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]