MODEL: ALT

ALT SPECIFICATIONS

ES-2711 Rev.9 Page 1/4

http://www.m-system.co.jp/

Limit Alarms (rotary switch adj.) AL-UNIT

THERMOCOUPLE ALARM

Functions & Features

• Providing SPDT relay outputs at preset input levels

• Direct input from a thermocouple

• Dual (Hi/Lo) trip

• 7-segment linearization

• Burnout protection

• High-accuracy cold junction compensation

• Energized or de-energized coil at a tripped condition

selectable

• Rotary switch setpoint adjustments

• Enclosed relays

• Relays can be powered 110 V DC

• High-density mounting

Typical Applications

• Annunciator

• Various alarm applications

6 7 8

6 7 8

6 7 8

6 7 8

50

(1.97)

132

(5.20)

80

(3.15)

mm (inch)

MODEL: ALT–[1][2][3]–[4][5]

ORDERING INFORMATION

• Code number: ALT-[1][2][3]-[4][5]

Specify a code from below for each of [1] through [5].

(e.g. ALT-221-B/BN/Q)

• Temperature range (e.g. 0 – 800°C)

• Specify the specification for option code /Q

(e.g. /C01/S01)

[1] INPUT THERMOCOUPLE

1: (PR) (Usable Range 0 to 1760°C, 32 to 3200°F)

2: K (CA) (Usable range -270 to +1370°C, -454 to +2498°F)

3: E (CRC) (Usable range -270 to +1000°C, -454 to +1832°F)

4: J (IC) (Usable range -210 to +1200°C, -346 to +2192°F)

5: T (CC) (Usable range -270 to +400°C, -454 to +752°F)

6: B (RH) (Usable range 0 to 1820°C, 32 to 3308°F)

7: R (Usable range -50 to +1760°C, -58 to +3200°F)

8: S (Usable range -50 to +1760°C, -58 to +3200°F)

N: N (Usable range -270 to +1300°C, -454 to +2372°F)

0: Specify

[2] SETPOINT 1 OUTPUT

1: Hi (coil energized at alarm)

2: Hi (coil de-energized at alarm)

3: Lo (coil energized at alarm)

4: Lo (coil de-energized at alarm)

[3] SETPOINT 2 OUTPUT

1: Hi (coil energized at alarm)

2: Hi (coil de-energized at alarm)

3: Lo (coil energized at alarm)

4: Lo (coil de-energized at alarm)

[4] POWER INPUT

AC Power

B: 100 V AC

C: 110 V AC

D: 115 V AC

F: 120 V AC

G: 200 V AC

H: 220 V AC

J: 240 V AC

DC Power

S: 12 V DC

R: 24 V DC

V: 48 V DC

P: 110 V DC

[5] OPTIONS (multiple selections)

Burnout

blank: Upscale burnout

/BL: Downscale burnout

/BN: No burnout

Other Options

blank: none

/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's 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