Mastech MS7222 Instruction Manual

MS7222

0301

Intr oduct ion

RTD Cal ibrat or is a han dheld t ool for c alibr ating R TD (Res istan ce Tempera ture De tecto r) tran smitt ers, incl uding m ost pul sed tra nsmit ters. I t simul ates an d meas ures se ven diff erent t ypes of R TDs, in u nits of °C or °F. It a lso sim ulate s and mea sures r esist ance in uni ts of ohm s. If the c alibr ator is d amage d or some thing i s missi ng, cont act the p lace of p urcha se imme diate ly. Conta ct your dist ribut or for in forma tion ab out acc essor ies.

RTD CALIBRATOR

OPERATING INSTRUCTION

Saf ety Info rmati on

To avoid p ossib le elec tric sh ock or pe rsona l injur y:

• Neve r apply m ore tha n 30 V betw een any t wo term inals ,

or bet ween an y termi nal and e arth gr ound.

Make s ure the b atter y door is c losed a nd latc hed

befo re you op erate t he cali brato r.

Remo ve test l eads fr om the ca libra tor bef ore you o pen

the ba ttery d oor.

Do not o perat e the cal ibrat or if it is d amage d.

Do not o perat e the cal ibrat or arou nd expl osive g as,

vapo r, or dust .

•

Inte rnati onal Sy mbols

Symbols

Refer to this instruction sheet for information about this feature.

Meaning

Fuse

Conforms to European Union directives

Double insulated

Battery

Earth ground

Gett ing Acqu ainte d With Th e Calib rator

1. The RT D type an nunci ators s how the s elect ed RTD typ e.

2. Sho w the mea sured o r simul ated va lue in de grees o r ohms . When OL ap pears , the val ue is out o f range .

3. It wi ll lit wh en the ba ttery i s low.

4. INP UT will li t when me asuri ng an RTD o r resis tance .

5. OUT PUT will l it when s imula ting an R TD or res istan ce.

6. Whe n an RTD typ e is sele cted, o ne of the se is lit t o show t he sele cted sc ale.

7. Whe n measu ring an RT D, one of t hese is l it to ind icate a two- wire, t hree- wire, o r four- wire co nfigu ratio n. These a nnunc iator s are not u sed whe n simul ating a n RTD or re sista nce (ou tput) .

8. POW ER ON/O FF

9. Pre ss to sel ect inp ut (mea sure) o r outpu t (simu late) mode .

10. IN PUT/O UTPUT te rmina ls.

11. Pres s to scro ll up or do wn disp lay. Hol d down to scro ll fast er.

12. In s imula te mode , press t o step up o r down 10 ° or 10 Ω. In m easur ement m ode, pr ess it to s elect a two- wire, t hree- wire, o r four- wire RTD i nput conf igura tion.

13. Pr ess to to ggle te mpera ture sc ales be tween Cels ius and F ahren heit.

14. Pr ess to se lect a di fferen t RTD typ e. When y ou sele ct the e ty pe (ohm s), dis playe d units a re ohms , not de grees .

°C/°F

RTD TYPE

Auto P ower Of f funct ion

In the p roces s of meas uring o r simul ating , if ther e is no any ac tion on t he mete r withi n 30 minu tes, th e meter w ill be Auto P ower Off . In auto p ower of f statu s to pres s the key, the m eter wi ll powe r on. The a uto pow er off func tion wi ll be can celle d such as f ollow ing ope ratio n:

1. Pre ss the ke y to turn o ff the met er, if the m eter powe r on.

2. Pre ss and ho ld the ke y to turn o n the met er.

3. The au to powe r off fun ction w ill be ca ncell ed.

4. To resum e the aut o power o ff func tion, t urn off t he mete r and tur n on it aga in, the a uto pow er off fun ction will b e resum ed.

CO NT EN TS

Intr oduct ion ... ..... ..... ..... ..... ..... ..... ..... ..2

Safe ty Info rmati on .... ...... ..... ..... ...... ..... 2

Inte rnati onal Sy mbols .... ..... ..... ...... ..... ....3

Gett ing Acq uaint ed

With T he Cali brat or .... ..... .... ..... ..... ..... .3

Auto P ower O ff Func tion. ..... ..... .... ..... ..... ...5

Meas uring a n RTD or Re sista nce.. ..... ..... ....6

Simu late an R TD or Resi stanc e.... ..... ...... ....7

Spec ifica tions … ..... ..... ..... ..... ..... ..... ..... ..... 8

Gene ral Spe cifica tions … ..... ..... ...... ..... ..... 10

Main tenanc e ……... ...... ..... ...... ...... ..... ...... ..10

MS7222

RTD CALIBRATOR

RTD TYPE

°C/°F

0906 08 1 0 1107

HYS 00668 4

Spec ifica tions

Gene ral Spe cific ation s

To simul ate an RTD , proce ed as fol lows:

1. Pre ss to tur n on the po wer.

2. If th e calib rator i s in inpu t mode (I NPUT on th e disp lay), p ress “I NPUT/ OUTPU T” once . Make su re the di splay s hows OU TPUT.

3. Pre ss to sel ect the d esire d RTD type .

4. Con nect te st lead s to the te rmina ls of the RT D meas uring d evice a s shown . Use onl y the two c enter outp uts.

5. Pre ss or to ad just th e value f or outp ut.

Simu latin g an RTD or R esist ance

RTD DE VICE IN PUT

Spec ifica tions a re base d on a one ye ar cali brati on cycl e and ap ply for a mbien t tempe ratur e from +1 8°C to +2 8°C unle ss stat ed othe rwise .

RANGE

0.00Ω~400.00Ω

Input Accuracy 4 Wrie ± Ω

Output Accuracy ± Ω

Allowable Excitation (mA)

400.0Ω~1500.0Ω

1500.0Ω~3200.0Ω

0.1~3.0

0.05~0.8

0.05~0.4

0.1

0.5

0.1

0.5

Allowable Excitation is for Output mode only. It shows the allowable excitation current from an ohmmeter or RTD measurement device connected to the calibrator. Excitation current from Calibrator: 0.2 mA. Maximum input voltage: 30 V

RTD Sp ecifi catio ns

Allowable Excitation (mA)

OUTPUT

Accuracy (°C)

INPUT

RANGE°C (°F)

RTD TYPE

-200.0~800.0 (-328.0~1472.0)

-200.0~630.0 (-328.0~1166.0)

Pt10 (385)

Pt50 (385)

Pt200(385)

Pt500(385)

Pt100(385)

1.5

0.3

0.2

2W/3W

1.5

0.5

0.4

1.5

0.5

0.4

0.1~3.0

0.05~0.8

0.1~3.0

0.05~0.4

-200.0~630.0 (-328.0~1166.0)

-200.0~800.0 (-328.0~1472.0)

Pt1000(385)

Pt100 (385)JIS

0.2

0.3

0.4

Maxi mum vol tage ap plied b etwee n any ter minal a nd eart h groun d or betw een any t wo term inals : 30V Stor age tem perat ure: -4 0 to 60 Oper ation t emper ature : -10 to 5 5 Oper ation a ltitu de: 300 0 meter s maxim um Temper ature c oeffi cient : 0.05× speci fied ac curac y per

for te mpera ture ra nges

-10 t o 18 and 2 8 to 55 Rela tive hu midit y: 95% up t o 30 ,7 5% up to 40 ,45% up to 50 ,and 3 5% up to 55

Vibra tion: R andom 2 g ,5 Hz to 50 0 Hz Shoc k: 1 mete r drop te st Powe r requi remen ts: Sin gle 9 V bat tery (A NSI/N EDA

1604 A or IEC 6LR 61)

Size : 190mm L ×89mm W ×42mm H Weigh t: Appro x. 350g

°C °C

°C

°C °C °C °C

°C °C

Main tenan ce

Cali brati on

Cali brate y our cal ibrat or once a y ear to en sure th at it per forms a ccord ing to it s speci ficat ions.

Repl acing t he Batt eries

If the m eter di splay “ ” o n LCD, th e batte ry must b e repl aced to m ainta in prop er oper ation . Follo wing proc edure t o repla cing th e batte ry:

1. Pre ss POWE R key to OF F. Discon nect te st lead s from any li ve sour ce and re move th e test le ads fro m the inpu t termi nals.

2. Rem ove the s crews o n the bat tery co ver and o pen the cove r.

3. Rem ove the e xhaus ted bat tery an d repla ce with a n ew 9V bat tery.

4. Don 't use th e meter b efore t he batt er cove r is in pla ce and fa stene d fully.

Othe rs

1. Cle an your m eter wi th a damp c loth an d mild de terge nt. Do not u se abra sives , solve nts, or a lcoho l.

2. If an y fault s or abno rmali ties ar e obser ved, th e meter can no t be used a ny more a nd it has t o be chec ked out .

Mea suring a n RTD or Re sista nce

To measu re an RTD, p rocee d as foll ows:

1. Pre ss to tur n on the po wer.

2. If th e calib rator i s in simu late mo de (OUT PUT on the disp lay), p ress “I NPUT/ OUTPU T” once . Make su re the disp lay sho ws INPU T.

3. Pre ss to sel ect the d esire d RTD type .

4. Pre ss to sel ect a two -wire , three -wire , or four w ire RTD inp ut conf igura tion. L ook for t he 2W, 3W, or 4 W annu nciat or on the d ispla y to veri fy that t he conf igura tion is s et corr ectly.

5. Con nect te st lead s to the RTD a s shown u p. Use tw o, thre e, or fou r input s, depe nding o n the set ting of 2 W, 3W, or 4W o n the dis play.

6. Rea d value o n the met er.

RTD TYPE

2W 3W 4W

RTD TYPE

2W 3W 4W

Mastech MS7222 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual