Omega CN158, CN154 Alarm Output Optimal, Heater Break Alarm option, Set value Bias option, Others

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Heater amperage detected by externally attached CT. (except 0~5V DC input)
Alarm output On upon detection of heater break while control output is On.

•

Communication address: Machine numbers are set in a range

 

 

from 0 to 99.

•

Communication rate:

1200, 2400, 4800 and 9600 bps.

•

Communication delay:

To be set in a range from 0 to 255

 

 

(Setting possible only in the case of

 

 

RS-485.)

•

Communication

 

 

distance:

RS-422A maximum 1200m

 

 

(depending on conditions)

 

 

RS-485 maximum 500m

 

 

(depending on conditions)

•Transmission procedure: No procedure.

•Communication code: Conforming with ASCII codes.

•

Control signal:

Not used.

•

Error detection:

Vertical parity (even parity) checking.

 

 

BCC (block check character)

 

 

checking.

•

Connectable number

 

 

of apparatuses:

Possible to connect 100 units

 

 

maximum (including the host,

 

 

depending on conditions)

Alarm Output (Optimal)

•Number of alarm points: 2 (AH and AL/HB, both for normal open and common)

• Alarm Type:

Selectable from the following 9

 

combinations.

 

(5 through 8 are selectable only when

 

apparatus has heater break alarm

 

function.)

0.Not assigned

1.Higher limit deviation value + lower limit deviation value without inhibit action

2.Higher limit absolute value + lower limit absolute value without inhibit action

3.Higher limit deviation value + lower limit deviation value with inhibit action

4.Higher limit absolute value + lower limit absolute value with inhibit action

5.Higher limit deviation value without inhibit action + heater break

6.Higher limit absolute value without inhibit action + heater break

7.Higher limit deviation value with inhibit action + heater break

8.Higher limit absolute value with inhibit action + heater break

•

Alarm setting range:

Higher limit and lower limit absolute

 

 

value alarms: Within full scale of

 

 

measuring range

 

Deviation value:

Higher limit: 0~2000 unit

 

 

Lower limit: -1999~0 unit

•

Alarm action:

On-Off action

•Alarm action hysteresis: Fixed to 0.2% of the measuring range

•Alarm output / rating: Contact 1a (common) / 240V AC 1.5A

(resistive load)

Heater Break Alarm (option)

This function can be added if the instrument has an alarm option and the control output is the contact type or the SSR drive voltage type.

• Alarm action:

•

Current setting range:

Off, 0.1~50.0A (Alarm action stops

 

 

when Off is set.) or, Off, 1~500A

 

 

(when 0~5 V DC for CT input is

 

 

selected)

•

Setting resolution:

0.1A or 1A

•

Amperage display:

0.0~55.0A or 0~550A

•

Display accuracy:

5% FS (when sine wave is 50 Hz) or

 

 

1% FS (in case of 0~5 V DC input)

•

Minimum time for

 

 

action confirmation:

On time: 500 msec.

•

Alarm holding:

Selectable between Lock (holding)

 

 

and Real (no holding)

• Sampling cycle:

2 sec.

Set value Bias (option)

 

• Setting range:

-1999~2000 unit

• Setting resolution:

Same as display resolution

• Action input:

Non-voltage contact (bias in action

 

 

when SB terminal is closed)

Others

 

•

Data storage:

By non-volatile memory (EEPROM)

•

Isolation:

Input, control output, communication

 

 

and alarm output circuits are isolated

 

 

from each other.

 

 

Input, set value bias and CT input

 

 

circuits are not isolated from each

 

 

other.

• Ambient conditions for use

 

Temperature/humidity

 

 

ranges:

-10~50 °C and below 90%RH (on the

 

 

condition that there is no dew

 

 

condensation)

 

Height:

2000 m above sea level or lower

 

Installation category:

II

 

Degree of pollution:

2

•

Supply voltage/

 

 

frequency:

100-260V AC±10% (50 / 60 Hz)

•

Power consumption:

12 VA max.

•

Insulation resistance:

Between input / output terminal and

 

 

power supply terminal:

 

 

500V DC 20 MΩ minimum

 

 

Between input / output terminal and

 

 

protective conductor terminal:

 

 

500V DC 20 MΩ minimum

•

Dielectric strength:

1 min. at 2300V AC between input /

 

 

output terminal and power supply

 

 

terminal

 

 

1 min. at 1500V AC between power

 

 

supply terminal and protective

 

 

conductor terminal

•

Protective structure:

Only front panel has simple dust-proof

 

 

and drip-proof structure

•

Material :

PPO resin molding (equivalent to

 

 

UL94V-1)

•

External dimensions

 

 

CN154, CN155:

H96 ⋅ W96 ⋅ D110

 

 

(panel depth: 100)mm

 

CN158, CN159:

H96 ⋅ W48 ⋅ D110

 

 

(panel depth: 100)mm

•

Mounting:

Push-in panel (one-touch mount)

•

Panel thickness:

1.0~3.5 mm

•

Panel cutout

 

 

CN154, CN155:

H92 ⋅ W92mm

 

CN158, CN159:

H92 ⋅ W45mm

•

Weight

 

 

CN154, CN155:

Approx. 400 g

 

CN158, CN159:

Approx. 300 g

The contents of this manual are subject to change without notice.

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Page 17 Page 19
Contents Page Page Page Page External dimensions and panel cutout Dimension of current transformer CT for heater break alarmHow to remove the instrument out of the case Wiring MountingInstruction for front panel Screen instruction Power on and initial screen displayAlarm type code table Screen changeInstruction for screen change and each screen Basic screenSoft start time setting screen screen No.14 Measuring range code tableOperation Setting of set value SVAT Auto tuning Supplementary explanation of screensSupplement Setting of alarmPID Screen No.2, 4 and 5 of mode 1 screen group Auto return functionGeneral Error messageInstructions on Communication Connection of RS-422ACommunication address setting screen Setting of communication parametersCommunication mode selecting screen Delay setting screenText Text format Data formatCommunication error Restrictions by commands, etcNon-response process Read command Write commandList of transmitted/received data Specifications Set value Bias option Alarm Output OptimalHeater Break Alarm option Others

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