Dwyer 8912 User Manual

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OPERATION MANUAL
ANEMO-PSYCHROMETER
&
BTU-PSYCHROMETER
Model:8903/8904/8906
Model:
8902 8911 8912
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INTRODUCTION
Thank you very much for purchasing this Anemo-Psychrometer. This unique meter design with 7 H.V.A.C &R must parameters in 1. The meter designed as battery operated for Humidity ,Air temp., Dew Point, Wet Bulb, Air Velocity, Air Volume & BTU (8912).
The sensor is built in the remote fan and is specially protected by tunable cap. While in operation, please turn on the cap to get accurate temperature and humidity reading.
The psychrometer is a micro processor­based design. A must device for HVAC engineers use. No need to whirl the meter or refer to the chart. Easy to get wet bulb, dew point and BTU(8912) quickly!
Features :
Tunable cap to p rot ect s ensor Up to 8 ve loc ity m emory (only 8 911 ) Big LCD digit display
Professional remote vane Metric& Imperial selectable Handheld size, easy to carry Low battery indication Fast response & Tripod mountable for long time use Dew Point calculated in seconds Wet Bulb calculated in seconds Microprocessor circuitry for reliability Sleep and non-sleep selectable
Powered by 4 AAA batteries or 9VDC adaptor
Back light for dark places
Accurate reading
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MATERIAL SUPPLIED
This package contains:
The meter x 1 Remote vane x1 Battery x 4 (AAA size ) Operation manual x1
Hard carry case x1
Optional accessory:
AC to DC 9V adaptor RS232 cable & CD
REMINDER
Important:
1. Rotate the cover before measurement to ensure the measured data is correct.
2. The fan and meter are sold as a kit and .
are well calibrated. When you need to replace the fan, please see page 16 for the details of fan replacement.
CONTROLS AND INDICATORS
LCD DI SPL AY
DPWBA VOLVG CAPMAXMIN
C
F
%RH
m/s
ft/m
3
cfm
REC HOLD
L
D
W
AREA
cm
inch
2
2
2
WAIT
M/m
Btu/hKw
START
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KEY PAD
1.Pow er :
-Tu rn on t he me ter wit h aut o-s lee p mode.
-Tu rn off th e met er at a ny mode .
-Whe n the m ete r is off, p res sing mo re than t wo se c. to e nter units s ele cti on.
2.MOD E:
-Pre ssi ng to s ele ct diff erent m ode s. Temp. DP WB RH Ve locity.
-Pre ssi ng lo nge r to sele ct VO L an d CAP.
3.ENT ER:
- To confi rm the se tti ng & ca lib ratio n.
4.Mx/ Mn/ Up :
-Pre ssi ng to v iew M AX/MI N/AVG va lue .
-Pre ss to s ele ct th e value o f eac h dig it in cyc le.
5.REC /START :
- In vel oci ty mo de, p ressi ng th is ke y to stor e the c urr ent veloci ty re adi ng in to memo ry (8 911onl y)
- To start measur ing v olu me or c apaci ty (891 2 onl y) wi tho ut wait ing .
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6.HOL D/D own :
- In bas ic mo des p res sing th is ke y to hold t he cu rre nt re ading , the n pre ssi ng this k ey ag ain t o unl ock the h old ing .
- Pres sin g to se lec t the set tin g dig it.
7.Pow er + :
- When t he me ter i s off, pr ess ing mor e than t wo se c. to e nter non-s lee p mod e.
8.Pow er + + :
- Pres sin g mor e tha n two sec ond s to ente r RH ca lib rat ion mod e.
9.EN TER + :
- Pre ssi ng t o tu rn on/ off th e ba ckl igh t.
POWER ON/OFF & UNIT SELECT
Pres s to tu rn on t he meter wit h auto -sl eep m ode . Press a gai n to tu rn off the meter a t any m ode .
When t he me ter i s off, pr ess ing more t han t wo se con ds to ent er un its sele cti on mo de.
C
%RH
m/s
3
M/m
Kw
cm
Or
inch
When i n uni t sel ect ion mod e, pr ess or to se lec t the u nit, th en, pres s to sa ve an d meter will b e powe red o n aut oma tical ly.
%RH
Btu/h
F
Ft/m
cfm
BASIC MEASUREMENT
Plea se re fer t o bel ow tabl e of th e bas ic meas ure d par ame ters of e ach m ode l
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Basi c Mea sur e
8902 89128911
Air tem p.
Humid it y
Dew Poi nt
Wet B ul b
Air Velo ci ty
Vel with avera ge
Exte nd Me asu re
8902 89128911
Air Volu me
Sum of
Volume
Capac it y
Sum of
Capac it y
When p owe r on, t he ai r tempe rat ure is the d efa ult v alu e to show o n the L CD. To revie w the o the r bas ic para met ers , just p res s key t hen each par ame ter will b e dis pla y in tu rn.
Whil e in ba sic m ode , press f or ov er 2 seco nds t o ent er ex tend me asu rem ent mode . For 8 912 , als o press k ey to swit ch be twe en vo lume an d cap aci ty.
Veloc ity w ith m emo ry (8911 o nly )
In vel oci ty mo de, p ress to s tor e valu e int o mem ory. A recor d num ber wil l be dis pla yed o n the t op-le ft of t he LC D. The ma x. re cor d is 8 po ints. (Fi g.A )
REC
m/s
(Fig .A)
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MAX, MI N & AVG.
From t he me ter i s pow ered on , air t emp ., dew- poi nt, W BT, hum idity & v elo cit y wil l be tem por ari ly sa ved in me ter, s o, to pres s cou ld vi ew the avera ge va lue mini mum v alu e and m aximu n val ue in turn s. Pr ess a gain to back t o nor mal mode . The dat a wil l be re -co unted o nce the me ter i s pow ere d off and t urn on agai n.
When i n Max ./M in. /Avg. m ode, pr ess ing key to d isp lay t he paramet ers y ou need . (Fi g. B, F ig. C)
DP MIN
F
MAX
%RH
(Fig . B)
(Fig . C)
Chec kin g vel oci ty memo ry( 89 11 on ly )
Whil e the 8 911 is in ve loc ity m ode and with r eco rd in m emo ry (up to 8 p oin ts) , pres sin g key t o review ave rag e valu e (at m ome nt, t he mete r is in h old mode ). Pres sin g key t o view the min imu m /max imu n val ue of m emori sed v elo cit y in tur ns. (Fi g.D & Fig. E) Pres sin g key a gain to exit a bov e aver age / min . /ma x. revi ew an d bac k to norm al. The me mor ize d rec ord wil l be de let ed afte r the m ete r is po wered o ff and tu rn on aga in.
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AVG
MIN
HOLD
(Fig .D)
Ft/m
HOLD
(Fig .E)
Ft/m
AIR VOL UME: OUTL ET SIZ E
Whil e in no rma l mod e, long p res sin g key to e nte r air v olume mode . To measu re th e vol ume , the out let s ize need t o be in put f irs t. Ther e are thr ee choi ce to e nte r the s ize:
- Leng th & Wi dth:
This i s the def aul t cho ice . Press key to s ele ct th e setting di git f irs t, then p res s key t o select the appr opr iat e val ue ( 0~9) . Whe n sel ect the va lue , the v alu e will sh ow fr om 0 to 9 in cy cle . Afte r entering l eng th, shor t pre ss to e nter width s ett ing . Repe at th e pro ced ure of le ngt h set tin g, then s hor t pre ss again to fi nis h the si ze se tti ng an d enter n ext s tep . (Fig .F)
- Diam ete r:
Whil e in de fau lt ou tlet se tti ng mo de (len gth ), pr ess ing key f or ov er two se con ds to c hoo se diam ete r set tin g.
Pres s key t o sel ect the sett ing d igi t firs t, th en pr ess key to sel ect t he appr opr iat e val ue ( 0~9)
After s ele cti on, s hort pr ess a gai n to fin ish t he si ze se tting a nd en ter n ext step . (Fi g. G)
- Are a:
Whil e in di ame ter s ettin g mod e, pres sin g key f or over two se con ds to ent er ar ea se tti ng.
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Pres s key t o sel ect the sett ing d igi t firs t, th en pr ess key to sel ect t he
appr opr iat e val ue ( 0~9) . After s ele cti on, s hort pr ess a gai n to fin ish t he si ze se tting a nd en ter n ext step . (Fi g. H)
VOL
VOL
L
D
cm
VOL
cm
(Fig . G)
(Fig . F)
W
AREA
cm
VOL
2
cm
(Fig . H)
Note : Ref er to p age 1 3 for the r ang e of eac h siz e inp ut mode.
AIR VOL UME: MEAS UREM ENT
Afte r sho rt pr ess ing to fi nis h and leav e siz e set tin g, ther e are 2 0 sec ond wait ing t ime f or yo u to put th e van e to the g ril l.
Duri ng th e 20 se con d waiti ng ti me, t he coun t dow n num ber d ispla yed o n top ­left c orn er an d met er also b eep s whe n time i s up. (Fi g. I) If no ne ed to w ait f or 20 s econd s, ju st pres sin g key t o start meas uri ng the vo lum e rig ht aw ay.
VOL
m/s
(Fig . I)
WAIT
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Afte r sta rti ng me asuri ng th e vol ume , the me ter w ill a uto matic all y cou nt th e volu me fo r 60 se con ds to giv e a ave rag e valu e. (F ig. J ) Dur ing thi s 60 se con d time , the v ane s hou ld move a lon g the whol e out let t o cov er each a rea s o the meas ure d dat a cou ld be mor e acc ura cy. The co unt d own n umb er disp lay ed on the to p- le ft co rne r as a remi nde r and mete r als o bee ps wh en 60 sec i s up.
Afte r tim e is up , 60 se conds a ver age volu me wi ll di spl ay on the L CD as F ig K.
VOL
(Fig . J)
START
3
M/m
VOL
AVG
(Fig . K)
3
M/m
If the re ar e mor e tha n one out let , you coul d pre ss ke y again to rep eat the pr oce dur e fro m outle t siz e inp ut. You co uld m eas ure out let a s man y as you ne ed.
Afte r mea sur ing m ore tha n one o utl et volu me, y ou co uld p ress ke y to revi ew th e sum o f all o utlet s. Pr ess ing key to r evi ew th e last outle t vol ume .
CAPAC ITY: OUTLET SIZ E
Whil e in no rma l mod e, long p res sin g to ent er ai r vol ume, then sh ort pres s to en ter c apacity mo de. To measu re th e cap aci ty, put th e vane on the I nle t, th en pr ess to co unt the 60 s eco nd av era ge Temp. & RH % ( Fig. L )co unt d own w ill sho w on le ft- top corn er of L CD an d met er beep s aft er 60 seco nd is u p. Then , the m ete r enter outl et si ze se tti ng auto mat ica lly. (Note 1)
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Ther e are t hre e cho ice to en ter t he si ze:
- Leng th & Wi dth:
This i s the def aul t cho ice . Press key to s ele ct th e setting di git f irs t, then p res s key t o select the appr opr iat e val ue ( 0~9) . Whe n sel ect the va lue , the v alu e will sh ow fr om 0 to 9 in cy cle . Afte r entering l eng th, shor t pre ss to e nter width s ett ing . Repe at th e pro ced ure of le ngt h set tin g, then s hor t pre ss again to fi nis h the si ze se tti ng an d enter n ext s tep .
(FIg .M)
- Diam ete r:
Whil e in de fau lt ou tlet se tti ng mo de (len gth ), pr ess ing key f or ov er two se con ds to c hoo se diam ete r set tin g.
Pres s key t o sel ect the sett ing d igi t firs t, th en pr ess key to sel ect t he
appr opr iat e val ue ( 0~9) After s ele cti on, s hort pr ess a gai n to fin ish t he si ze se tting a nd en ter n ext step . (Fi g. N)
CAP
%RH
CAP
WAIT
(Fig . L)
cm
W
(Fig . M)
- Are a:
Whil e in di ame ter s ettin g mod e, pres sin g key f or over two se con ds to ent er ar ea se tti ng.
Pres s key t o sel ect the sett ing d igi t firs t, th en pr ess key to sel ect t he
appr opr iat e val ue ( 0~9) . After s ele cti on, s hort pr ess a gai n to fin ish t he si ze se tting a nd en ter n ext step . (Fi g. O)
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CAP
CAP
D
D
(Fig . N)
cm
cm
AREA
AREA
(Fig . O)
2
CAPAC ITY: MEASUREM ENT
Afte r sho rt pr ess ing to fi nis h and leav e siz e set tin g, ther e are 9 0 or 20 seco nd (n ot e 1) wa iting time f or yo u to put th e van e to th e gri ll. Duri ng ab ove w ait ing tim e, th e cou nt down n umb er di spl ayed on t op- lef t corn er an d met er al so beep s whe n time i s up. (Fi g. P)
If no ne ed to w ait f or 90 o r 20 seco nds , just p res sin g key to start m eas uri ng the ca pac ity r igh t away.
WAIT
(Fig . P)
move th e va ne a lo ng t he g ri ll t o ge t ac cu ra cy valu e.
Afte r sta rti ng me asuri ng th e cap aci ty, the me ter w ill a uto matic all y cou nt th e capa cit y for 6 0 sec onds to g ive a n aver age v alu e. (F ig. Q)
Duri ng th is 60 s eco nd time , the v ane shou ld mo ve al ong t he whol e out let t o cove r eac h are a so th e measu red d ata coul d be mo re ac cur acy. Th e cou nt down n umb er di spl ayed on t he to p- le ft corn er as a r emi nde r and met er al so beep s whe n 60 se c is up . Afte r tim e is up , 60 se conds a ver age volu me wi ll di spl ay on the L CD as F ig R.
Not e 1:
CAP
If yo u ha ve m an y ou tl et t o measu re , wh il e yo u st ar t to
m/s
measu re t he s ec on d on e, the w ai ti ng t im e wi ll a dj us t to 20 s ec a ut om at ic al ly. 90 sec. is t he b uf fe r fo r senso r to s ta bl e. N o ma tt er in in le t or o ut le t, s ug ge st t o
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CAP
CAP
AVG
(Fig . Q)
START
Kw
(Fig . R)
Kw
If the re ar e mor e tha n one out let , you
coul d pre ss ke y again to rep eat
the pr oce dur e fro m outle t siz e inp ut.
You co uld m eas ure out let a s man y as
you ne ed.
Afte r mea sur ing m ore tha n one o utl et
volu me, y ou co uld p ress ke y to
revi ew th e sum o f all o utlet s. Pr ess ing
key to r evi ew th e last outle t
capa cit y.
If you w oul d lik e to me asure m ore t han 1 inle t, pl eas e wai t for 10 mi nut e and allo w the h umi dut y senso r to re tur n to the hu mid ity r oom o r help it b y hom e vent ila tio n.
LOW-BATTERY
Two lev el lo w bat ter y indic ati on:
-Lev el 1: B att ery i ndica tor w ill f las h when meet l eve l 1. In t his s ituat ion , the m ete r will w ork n orm al ho wever u ser s sho uld prep are n ew ba tte ries.
-Lev el 2: B att ery i ndica tor w ill a lwa ys disp lay o n the L CD wh ile mee t lev er 2. In thi s sit uat ion , users n eed t o cha nge batt eri es im med iatel y.
1. Open the battery cover on the rear side.
2. Remove the expired batteries.
3. Insert new 4pcs AAA batteries and make sure the batteries are inserted with correct polarity, put on the cover.
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AC TO DC ADAPTOR
The co mpa tib le AC to D C adapt or is 9V at le ast 2 00m A.
AVAILABLE SIZE RANGE
Plea se re fer t o bel ow inpu t siz e ran ge. Plea se be r emi nde d that in m etr ic L/ W/D , the va lue a fte r dec al is not s ele cta ble .
cm
inch
L/W/ D
000. 0~9 99. 0
000. 0~9 99. 9
AREA
0000 0~9 999 9
0000 0~9 999 9
RS232 SOFTWARE
Soft war e
We hav e compa tib le so ftw are and cabl e whi ch is d esi gn for th e met er, plea se co nta ct wi th your s upp lie r for the de tai ls.
Inte rfa ce of R S23 2 A.960 0 bps , 8 dat a bits , no pa rit y.
B. For mat : Tx. AS CII c ode by e ver y sec . wh ile m ete r is on
VXXX.XMPS(FTM):TXXX.XC(F):HXX.X%: dXXX.XC(F):wXXX.XC(F): vXXXXX.XCMM(CFM): UXXXXX.XKW(BTU)
NOTE: Last parameter (capacity) is for 8912 only.
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Wher e: The 1 valu e is ve loc ity, the
nd rd
2 valu e is Air t emp ., th e 3 value is Humi dit y, th e 4 val ue is D ew Po int, the 5t h val ue is Wet b ulb , the 6 v alue
st
th
th
is AIR Vol ume , the 7 th va lue is Ca pac ity.
The x he re me ans o ne of { 0|1|2 | |9| -}
C. For mat f or error va lue : E0 1 Prob e didn 't co nne cted ; E0 2 Und er fl ow; E0 3 Ove r flo w. Se e mor e in pa ge Th e uni t for e rror c ode i s Nul .
EX:
V010.5MPS:TE02Nul:H66.7%: dE04Nu:wE04Nul:v00020.5CMM.
TROUBLESHOOTING
1. Pow er on b ut no d isp lay a)Mak e sur e the t ime o f press ing key is m ore t han 0 .1 se cond. b)Che ck th e bat ter ies are i n pla ce an d in goo d con tac t wit h corre ct po lar ity. c)Rep lac e a new b att ery and t ry ag ain . d)Mov e awa y the b att ery for o ne mi nut e andp ut ba ck ag ain .
2. Dis pla y dis app ear a)Che ck wh eth er th e low bat ter y indi cat or di spl ayed be for e Dis pla y disa ppe ar, if y es, r eplac e a new b att ery. b)Tu rn on t he me ter by pr ess ing + key to d isa ble a uto power of f func tio n for l ong t ime usi ng.
3. E1 a)The p rob e is di sco nnect ed or d ama ged .
4. E 2 a)The v alu e is un der flow.
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5.E 3
a)The v alu e is ov erf low.
4.E4
a)The o rig ina l dat a that is r ela tiv e to th is
valu e err or.
5.E5
a)Out o f met er di spl ay rang e.
6.E6
a)the v alu e is no t cal culat ed co mpl ete ly.
7.E 11
a)Hum idi ty Ca lib ratio n err or.
SPECIFICATION
O O O
TEMPERATURE : -20 to 60 (-4 to 140 )
Accuracy.+0.6 (+1 ) , Resolution :0.1 (0.1 ) RELATIVE HUMIDITY : 0 to 100% RH Accuracy +3% at 10 to 90%RH (cal. temp.) +5% at other range Resolution : 0.1% DEW POINT : -68 to 70 (-90 to 158 ) Resolution0.1
WET BULB TEMPERATURE :
O O
-22 to 70 (-7.6 to 158 )
C F
Resolution : 0.1 AIR VELOCITY : 0.6 to 32 m/s (118 to 6299 ft/m) Accuracy+2% of full sca le Resolution : 0.1 AIR VOLUME : 0 to 99999 m /s (0 to 99999 cfm) Accuracy
+2% of fu ll s cal e
Resolution :0.1 ( 0 - 9999.9 ) or 1 (10000 - 99999)
C C F
O O
C F
O O
C F
O O
C F
O
C
O
C
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ADDITIONAL FEATURE : BTU CAPACITY : 0 to 99999 BTU/H (KW) (8912) Resolution : 0.1 ( 0 - 9999.9 ) or 1 (10000 - 99999) Dimension : (HxWxD)
Vane170 x 77 x 40 mm ; Meter175 x 70 x 33 mm
3 3
Power:4 x 1.5V AAA battery or
9V >200mA adaptor.
FAN REPLACEMENT
If use rs ha ve mo re th an one se t ane mo­mete rs or u ser s cha nge a new f an fo r his ol d met er, us er sh ould in put t he RH% ca lib rat ion d ata whi ch en clo sed with e ach f an. The d ata w ill b e recor ded in a sli p of pa per a nd sh ip with f an, p lea se
keep t he pa per w ell f or futu re us e.
Ther e are t wo ca lib ratio n dat a nee d to be inp utt ed. F irs t value i s "Sl ope , S" an d the se con d val ue is " Inter cep t, Z"
Slop e(v alu e S)
1. Whi le th e met er is o ff , pre ss + + at the s ame t ime f or 2 seco nds t o ent er hu midit y slo pe cali bra tio n mod e. LCD wi ll di spl ay curr ent s ave d S val ue and th e las t digi t wil l fla sh to i ndica te th e val ue is rea dy fo r edi t.
2. If th e sav ed S va lue i s diffe rent fr om your p ape r, pre ss key to move to the d igi t whi ch yo u want to e dit and th en us e key t o change the va lue .
3. Pre ss ke y to sa ve new input S valu e and t hen m ete r will en ter seco nd va lue i npu t autom ati cal ly.
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Impo rta nt No te: While se tti ng th e slo pe, only i npu t 5 dig its a fter de cim al po int , so user n eed t o rou nd off th e 6th d igit. User s hou ld al so in put two d igi ts be for e deci mal .
Exam ple : a. If th e S val ue is 8 .239678, u ser shou ld in put 0 8 239 68 b. If th e S val ue is 11.2 396 8, us er shou ld in put 11 239 68 c. If th e S val ue is 0 .2396838 , use r shou ld in put 0 0 239 68 (Fig . S)
(Fig . S)
Inte rce pt (v alu e Z)
1. Whi le pr ess k ey save the S sett ing , the m eter will en ter i nte rce pt inpu t aut oma tic ally. The la st di git will f las h to in dic ate the Z v alu e is now re ady f or ed it.
2. If th e las t sav ed Z value is di ffere nt from y our p ape r, pre ss key to move t o the d igi t whi ch you wa nt to edi t and t hen u se key to chan ge th e val ue.
3. Pre ss ke y to sa ve new input Z valu e and t hen m ete r will be b ack to nor mal R H val ue mo de.
Impo rta nt No te: While se tti ng Z va lue , only i npu t 3 dig its a fter de cim al po int , so user n eed t o rou nd off th e 4th d igit.
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User s hou ld al so in put fou r dig its b efo re deci mal . All th e Z is a ne gativ e val ue bu t LCD wi ll no t app ear t he nega tiv e ico n. Exam ple : a. If th e Z val ue is - 928 .8683 , use r shou ld in put 0 9 288 68 b. If th e Z val ue is - 192 8.868 , use r shou ld in put 1 9 288 68 c. If th e Z val ue is - 89.68482 , use r shou ld in put 0 0 896 85 (Fig . T)
(Fig . T)
RETURN AUTHORIZATION
Authorization must be obtained from the supplier before returning items for any reason. When requiring a RA (Return Authorization) , please include data regarding the defective reason, the meters are returned along with good packing to prevent any damage in shipment and insured against possible damage or loss.
WARRANTY
The meter is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase. This warranty covers normal operation and does not cover battery, misuse, abuse, alteration, tampering, neglect, improper maintenance or damage resulting from leaking batteries.
Proof of purchase is required for warranty repairs. Warranty is void if the meter has been opened .
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Accuracy, the Zenith of
Measuring / Testing Instruments !
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Wireless Transmitter ..........
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2010 .05 m odi fy
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