Practical Instrument Electronics
Model 525
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585 -872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrumen t Electro nics, Inc. Copyr i ght 2011. All rights reserved.
525-9002 Rev B
1-8
Dual T/C & RTD Calibrator
With Auto Stepping
Operati n g Instruct ions
Basic Keypad Operations
j EZ-Check™ Switch
For Simulation - Slide the switch to select from three user stored
values for the d e sired calibration points. The user can select HI, DIA L,
and LO positio ns. These val u e s ca n e a sil y be changed t o su it the
calibration requirements. Also these store d v a lue s can b e use f or Auto
Stepping.
For Read - Slide th e switch to the D IA L position. The Model 525 will
begin making readings. Slide the switch to high and you will get t he
highest point read and then slide the switch to the low position and
you will get the lowest range.
k SIMULA TE/OF F/ R E A D S w itch
Turn the Model 525 on to SIMULATE to output a
temperature, ohms, or mV. Turn the unit to READ
to read temperature, ohms, or mV.
l EZ-Dial™ Knob
Turn the knob to change temperature in 0.1º or
0.01º increments. Push and turn for faste r d ia ling .
Double push to get into the model 525
Configuration mod e to auto B a ttery on/ off , C° or
F°, RTD or T/C types, Store or step fe a ture , select
step size and step time . Then press to store
desired EZ-Check™ HI/LO points in SIMULATE
mode. Push to clear EZ-Check™ HI/LO poi nts in
READ mode.
Note: The Model 525 is a Unive rsal Temperature
Calibrator that works great calibrating M ul tichannel Chart Recorders, Data Acquisition &
Computer Systems and Smart transmit te rs.
The Model 525 is GUARANTEED to work with ALL
transmitters, rec ord e rs an d a ny ot he r RTD input
devices that use intermittent, o r p u lsed e x citation
current to measure the resistance of the RTD. The
Model 525 automatically adjusts to the correct
excitation curren t.
Model 525 Configuration
Instruc tions for Enabling and Disabling the Configuration Options
1. Turn the Model 525 on to SIMULATE or READ .
2. Double Click the EZ-Dial Knob at any time to en ter configuration menu.
3. Select options by turning the EZ-Dial Knob clockwise until the arrow points to the
desired option.
4. The option can be enabled or disabled by tapping the EZ-Dial Knob.
The Model 525 configuration menu will ex i t au tomatically aft e r 5 secon d s of ina ctiv ity and go
to normal operation with the options selected. The se options are re calle d a t tu rn on unt il the y
are changed again.
NOTE: Changing the battery will reset menu options to factory settings.
Model 525 Configuration Me nu
Auto Off ON/OFF
If Auto Off is ON, the un it will tu rn of f after 30 minutes to sa v e b a tte ry life, if there is no user activity . If A uto O f f is OFF the u nit wil l
stay on until it is turned of f from the keypad . This is ty p ica lly u sef u l f or ma nua l loa d in g or continuous use. Pre ss t he EZ-Dial Knob
to select.
Display Units °C/°F
Pressing the EZ-Dial Kn ob to tog g le s b e twe e n ° C or °F.
Mode - RTD or T/C You are able to select the different, RTD types - Pt100 α=3850, Pt100 α=3902, Pt100 α=3916, Pt100 α=3926, Cu10 α=427, Cu50 α=428, Ni110 Brist o l, Ni120 α=672, Ω T/C types - B, E, J, K, N, R, S, T, or mV
To change RTD or T/C ty p e , p ress the E Z -Dial™ Knob. Turn the EZ -Dial™ Knob to scroll through the list of available types. P re ss
again to save and return to the configuration menu.
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585 -872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrument Ele ct ronics, In c. Copyright 2011. All rights reserved.
525-9002 7/13/11
2-8
Display Indications:
OVERRANGE or
The resistance input exceeds
MISCONNECT
The Model 525 is incorre ctly
Store/Step
Model 525 Op e rating Instructio n s
To select three test point values you first have to select Store,
1. Select your high range by sliding the Hi/Lo slide switch to the HI position and d ia l it to the range desired then press and
hold the EZ-Dial™ Knob until STORED appears to store the value.
2. Slide the Hi/Lo slide switch to t he middle position (d ial ) an d d ia l it to t he ra ng e d e sire d . You d o not h ave to press store
to keep this va lue . This p osition if so d e sired is adjustable.
3. Slide the Hi/Lo slide switch to the Lo position and dia l it to th e ran g e d e sire the n p re ss a nd hold the EZ -Dial™ Knob
until STORED appears to store the v alue .
Memory will be maintained ev en when p ower is off.
To start stepp ing after you ha ve selected t he st ep size and step time as described below scroll
back up the c on fi guration m ode to STORE/STEP and select step then let the unit ti me out of
configuration mode. Place the slide swi t ch in either Hi or L o p osition and p ress and hold the
EZ-Dial™ Knob t o st art and also to stop.
Step Size
To change the step size, press the EZ-Dial™ Knob to find the d e sire d ste p size or % .
Step Time
To change the step time, press the EZ-Dial™ Knob to find the d e sire d ste p time in d icate d in seconds. This is the time in-between
each step.
Display Resolution
To Select between High resolution 0.01º, 000.000Ω or Low resolution 0.1º, 000.00Ω, press the EZ-Dial™ Knob to find t he desired
display setting .
Double-click the EZ-Dial™ Knob to return to the configuration menu at any time of operation.
Read Mode
Slide the SIMULATE/OFF/READ switch to READ for direct RT D o r T/C input. Then slide t he EZ-Check™ Switch to DIAL position to
monitor the RTD o r T/ C input. The Model 525 displays temperatu re corresp on d ing to resistance i np u t f or th e sele cte d RTD type.
Memory is updated every second once the unit is turned on or the CLEAR option is used. This helps when looking at temperature drift
or for any other deviation. Slid e th e EZ -C he ck ™ S witch to HI and LO to re call maximum and min imum saved readin g s. Observe the
“HI” and “LO” switch position indicators in the display. Press and hold the EZ -Dial™ Knob t o clea r sav e d readings. The displa y flashes
“CLEARED” as a confirmation.
Be sure the switch is in the DIAL position to monitor input.
Turning the EZ-Dial™ Knob has no effect in read mode.
RTD READ ONLY-Automatic 2, 3, or 4 wire detect: Connect 2, 3, or 4 wires to the RTD sensor. Follow the conne ction diagrams.
The Model 525 indicate s “2W”, “3W”, or “4W” in the lowe r left corner of the d i spl ay . It will als o p la ce an arrow under each connected
wire to show which wire is connected and will ind ica te if th e re is an “ERROR”. Use this f e a ture f or trou b le shooting unconne cted leads
or sensors. See below figure.
RTD Read Connection, (wire kit supplied)
RTD Read Mode Connection
Check Co nnec tions 1 and 2 You have to have wires 1
and 2 connect e d correctly
before trying to connect up
to a 3 or 4 wire transmitter
UNDERRANGE
OPEN RTD No RTD is conne ct e d.
the range of the selected
RTD type.
connected for a 3-wire or 4wire reading. Bot h b la ck
leads are require d .
Model 525 Op e rating Instructio n s
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585 -872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrument Ele ct ronics, In c. Copyright 2011. All rights reserved.
525-9002 7/13/11
3-8
Source Mode
Slide the SIMULATE/OFF/READ switch to SIMULATE for direct RTD or T/C output. The M od el 525 outputs resistance corresponding to
temperature for the selected RTD or outputs mV corresponding to temperature for the sele cted T/C type.
Turn the EZ-Dial™ Knob to change temperature, push and turn for faster dialing.
Slide the EZ-Ch e ck ™ S witch to H I o r LO to recall stored settings. While in the HI or LO position, d ia l a ne w se ttin g a nd press the
EZ-Dial™ Knob to store. The DIAL position always hold s th e last se ttin g d ia le d th e re . Using the STORED Value s g ives you very
accurate v alu e s fo r repeatability. Adjusting the EZ-Dial™ Knob you can check f or controlle r a ctions, trip points or hy ste resis.
Double-click the E Z -Dial™ Knob to return to the configuration menu.
Auto Stepping in Source Mode
Select the step si ze by pressing the EZ-Dial™ Knob to find the desired step size or %. Select the step time by pressing the EZ-Dial™
Knob to find the desired step time indicated in seconds.
RTD Connection Diagrams, (wire lead kit supplied)
SOURCE ONLY: (See opposite figure)
To connect to a 2 wire transmitter connect one red lead to
post 1 (RTD1) and connect one black le ad to p ost 2 (RT D2).
To connect to a 3 wire transmitter connect one red lead to
post 1 (RTD1) and connect two bla ck le ad s to p ost 2 (RT D2).
To connect to a 4 wire transmitter connect two red leads to
post 1 (RTD1) and connect two bla ck le ad s to p ost 2 (RT D2).
NOTE:
3 WIRE & 4 WI R E TE RMINALS ARE FOR READ MODE
ONLY. See figure page 2.
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585 -872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrument Ele ct ronics, In c. Copyright 2011. All rights reserved.
525-9002 7/13/11
4-8
T/C
T/C
ISA/ANSI
T/C
T/C
ISA/ANSI
TYPE
MATERIAL
COLOR
TYPE
MATERIAL
COLOR
J
+IRON
WHITE
N
+NICROSIL
ORANGE
JACKET
BLACK
JACKET
ORANGE
K
+CHROMEL®
YELLOW
+TUNGSTEN
WHITE
G
JACKET
YELLOW
(W)
JACKET
WHITE/BLUE
T
+COPPER
BLUE +W5/Re
WHITE
-
CONSTANTAN
RED C -W26/Re
RED
JACKET
BLUE
(W5)
JACKET
WHITE/RED
E
+CHROMEL®
PURPLE
D
+W3/Re
WHITE
CONSTANTAN
RED
-W25/Re
RED
JACKET
PURPLE
JACKET
WHT/YEL
R
+Pt/13rH
BLACK
4
YELLOW
-PLATINUM
RED P -Au65/Pd35
RED
JACKET
GREEN
®
JACKET
BLACK
S
+Pt/10Rh
BLACK
din colors
-PLATINUM
RED +IRON
RED
L
B
+Pt30Rh
GREY
J DIN
JACKET
BLUE
-Pt/6Rh
RED +COPPER
RED
JACKET
GREY
U
-CONSTANTAN
BROWN
T DIN
JACKET
BROWN
Two Wire Connection to Transmitter
Model 525 Op e rating Instructio n s
T/C Connection Diagram
Color Codes FOR T/C Connections
-
CONSTANTAN RED -NISIL RED
-ALUMEL® RED
-
-W26/Re RED
Platinel
JACKET GREEN
CHROMEL® and ALUMEL® are registered trademarks of Hoskins Manufacturing Company. PLATINEL® is a
registered trademark of Engelhard Corporation.
+Pd55/Pt31/Au1
- CONSTANTAN BLUE
Model 525 Op e rating Instructio n s
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585 -872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrument Ele ct ronics, In c. Copyright 2011. All rights reserved.
525-9002 7/13/11
5-8
Temperature Range
-25 to 60 °C (-10 to 140 °F)
Size
4.9 X 3.15 X 1.82 inches (125.5 X 80 X 46.2 mm)
Miscellaneous
Low battery indication with nominal 1 hour of operation left
Resolution
°C or °F / 0.01 Ω or 0.001Ω
Span
0.000-400.000 Ω
Excitation Current
620 μA nominal
Output Noise
±5 µV pp from 0.1 Hz to 10 Hz
Input Noise
< ±1 LSD from 0.1 Hz to 10 Hz
Open T/C Response Time
< 3 seconds
Open T/C Th reshold
10 kΩ nominal
T/C wire Kits:
Wire Kit 1 includes J, T, E, K wire s with mini connectors
Wire Kit 2 includes B, R /S , N wi res wit h mini connectors
Specifications
General Specifications: ( 2 minute warm-up time to reach full specifications)
(Unless otherwise ind icated all specificat ions are rated from a nomin al 2 3 °C, 7 0 % RH f or 1 year from calibration)
Relative Humidi ty Ra nge 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing
10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing
Weight 9.1 oz (258 grams)
Battery 9V Alkaline p rov ides 45 hours of continuous use
Protection to 60V for up to 30 se cond s in d ura tion
High contrast graphic liq u id crystal display with 0. 357” (9.07 mm) high d ig its
Accuracy ±(0.015 % of Ω + 0.05) Ω (see accuracy tables for temperature error)
Temperature Coefficient ±0.01 % of sp an outside of 25°C ± 10°C
RTD Simul atio n Specificat io n s :
Allowable Excitat ion Cu rrent 100 µA to 10.2 mA, stead y or pulsed/intermittent/smart
for accuracies below 100µA add ±10µV/Excitation Curre nt ( units are in Ω)
Pulsed Excitation Current Compatibil ity DC to 0.01 second pulse widths
RTD Read Specifications:
T/C Simulation Specifications:
Output Range -13.000 to +80.000 mV
Output Impedance 0.2 Ω (200 nV/uA)
Source Current < 8 mA
T/C READ Specifications:
Input Impedance > 1 MΩ
Open T/C Te s t P u lse < 10 μA for 300 ms
Available Options:
Carrying Case - included Part N u mb e r: 020-0205
Model 525 Op e rating Instructio n s
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585 -872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrument Ele ct ronics, In c. Copyright 2011. All rights reserved.
525-9002 7/13/11
6-8
Pt100 TCR=0.00385
-200 to 850 °C
0.1
0.2
0.3
0.4
-200 0 200 400 600 800
Temperature °C
Error °C
Pt100 TCR=0.003902
-200 to 648.9 °C
0.1
0.2
0.3
0.4
-200 0 200 400 600 800
Temperature °C
Error °C
Pt100 TCR=0.003916
-200 to 648.9 °C
0.1
0.2
0.3
0.4
-200 0 200 400 600 800
Temperature °C
Erro r °C
Pt100 TCR=0.003926
-200 to 850 °C
0.1
0.2
0.3
0.4
-200 0 200 400 600 800
Temperature °C
Error °C
Cu10 TCR=0.00427
-200 to 260 °C
1.2
1.25
1.3
1.35
1.4
-200 -100 0 100 200 300
Temperature °C
Error °C
Cu50 TCR=0.00428
-50 to 150 °C
0
0.1
0.2
0.3
0.4
0.5
-50 0 50 100 150
Temperature °C
Erro r °C
Ni120 TCR=0.00672
-80 to 260 °C
0.07
0.08
0.09
0.1
-100 -50 0 50 100 150 200 250 300
Temperature °C
Error °C
Ni110 TC R =0.00530
-100 to 26 0 °C
0.08
0.1
0.12
-100 0 100
200
300
400
Temperature °C
RTD Temperature Accuracy
The following chart s g iv e worst-case tempe r a tu re a ccuracy base d on stated re sist a n ce a ccuracy of ± (0.015 % + 0.05) Ω.
0.16
Error °C
0.14
Model 525 Op e rating Instructio n s
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585 -872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrument Ele ct ronics, In c. Copyright 2011. All rights reserved.
525-9002 7/13/11
7-8
TYPE B
594 to 1820 °C
0
0.2
0.4
0.6
0.8
1
1.2
500
700
900
1100
1300
1500
1700
1900
Temperature °C
Error °C
TYPE E
-260 to 1000 °C
0
0.2
0.4
0.6
0.8
1
1.2
1.4
-400
-200
0
200
400
600
800
1000
1200
Temperature °C
Error °C
TYPE N
-229 to 1300 °C
0
0.2
0.4
0.6
0.8
1
1.2
-400
-200
0
200
400
600
800
1000
1200
1400
Temperature °C
Error °C
TYPE R
24 to 1768 °C
0
0.2
0.4
0.6
0.8
1
1.2
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Temperature °C
Error °C
TYPE S
21 to 1768 °C
0
0.2
0.4
0.6
0.8
1
1.2
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Temperature °C
Error °C
TYPE T
-251 to 400 °C
0
0.2
0.4
0.6
0.8
1
1.2
-300
-200
-100
0
100
200
300
400
500
Temperature °C
Error °C
TYPE K
-245 to 1372 °C
0
0.2
0.4
0.6
0.8
1
1.2
-400
-200
0
200
400
600
800
1000
1200
1400
1600
Temperature °C
Error °C
TYPE J
-210 to 1200 °C
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
-400
-200
0
200
400
600
800
1000
1200
1400
Temperature °C
Error °C
T/C Temperature Accuracy
The following chart s g iv e worst-case temperature a ccuracy based on state d milliv o lt accuracy of ± (0.008 % + 0.006). T e mpe rature
is uncompensated on the horizontal axis, referenced to 0 °C. Cold Junction calibration accuracy of 0.1 °C is not included in the
temperature error.
Model 525 Op e rating Instructio n s
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585 -872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrument Ele ct ronics, In c. Copyright 2011. All rights reserved.
525-9002 7/13/11
8-8
RTD Calibrator (Source/Read 7 Types, Ω /0.1° resolution)
Model 512
T/C Source (Single Type/1° resolution)
Model 520
T/C Source (8 Types, mV/0.1° resolution)
Model 521
4-20 Milli amp Loop C a librator
Model 530
Pocket-Mate Milliamp Calibrator
Model 531
Frequency Read & Source with Totalizer
Model 541
Other Products Available:
RTD Source (Single Type/1° resolution) Model 510
RTD Source (7 Types, Ω/0.1° resolution)
Model 511
Pt100: α=1.3850, 1.3902, 1.3916, 1.3926, Cu10: α=1.427
Ni110: α=1.530, Ni120: α=1.672
RTD Calibrator (Source, Read & Auto Stepping 8 Types, Ω /0.1°
Model 512S
resolution)
B, E, J, K, N, R, S, T, mV
T/C Calib rator (Sourc e/Read 8 Types, mV /0.1° res olution)
Model 522
B, E, J, K, N, R, S, T, mV
4-20 Milli amp Loop C a librator wit h Diagnostic Model 532
4-20/10-50 Dual Range Loop Calibrator Model 535
Warranty
Our equipment is guaranteed against defective material and workmanship (excluding batt e rie s) f or a period of three ye a rs f rom the
date of shipment. Claims under guarantee can be made by returning the equipment prepaid to our factory. The equipment will be
repaired, rep lace d or a d juste d a t our op t ion. The lia b ili ty of P ractical Instrument Ele ctronics (PIE) is restri cte d to th at given under our
guarantee. No re sp onsib il ity is a ccep te d for damage, loss or oth e r expense incurred throug h sale or u se of o ur e q u ip me nt. Und e r n o
condition shall Practical Instrument E le ctronics, Inc. be liab le f or a ny sp e cia l, incid e n ta l or conse q ue n tial d ama g e .
Loading...